Home / 139,614,521.57-192,688,986.12-106,068,799.25

Finding the Fourth Proportional to 139,614,521.57, 192,688,986.12 and 106,068,799.25

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Solution

The fourth proportional to 139,614,521.57, 192,688,986.12 and 106,068,799.25 is: 146,390,856.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,614,521.57 : 192,688,986.12 = 106,068,799.25 : x
  2. Step 2: Convert to fraction form
    139,614,521.57/192,688,986.12 = 106,068,799.25/x
  3. Step 3: Cross multiply
    139,614,521.57x = 192,688,986.12 × 106,068,799.25
  4. Step 4: Simplify right side
    139,614,521.57x = 20,438,289,386,406,864
  5. Step 5: Solve for x
    x = 20,438,289,386,406,864/139,614,521.57
  6. Step 6: Final answer
    x = 146,390,856.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.