Home / 139,932.16-193,106.10-76,269.76

Finding the Fourth Proportional to 139,932.16, 193,106.10 and 76,269.76

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Solution

The fourth proportional to 139,932.16, 193,106.10 and 76,269.76 is: 105,252.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,932.16 : 193,106.10 = 76,269.76 : x
  2. Step 2: Convert to fraction form
    139,932.16/193,106.10 = 76,269.76/x
  3. Step 3: Cross multiply
    139,932.16x = 193,106.10 × 76,269.76
  4. Step 4: Simplify right side
    139,932.16x = 14,728,155,901.54
  5. Step 5: Solve for x
    x = 14,728,155,901.54/139,932.16
  6. Step 6: Final answer
    x = 105,252.12

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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.