Home / 139,931.76-209,835.84-40,069.26

Finding the Fourth Proportional to 139,931.76, 209,835.84 and 40,069.26

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Solution

The fourth proportional to 139,931.76, 209,835.84 and 40,069.26 is: 60,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,931.76 : 209,835.84 = 40,069.26 : x
  2. Step 2: Convert to fraction form
    139,931.76/209,835.84 = 40,069.26/x
  3. Step 3: Cross multiply
    139,931.76x = 209,835.84 × 40,069.26
  4. Step 4: Simplify right side
    139,931.76x = 8,407,966,830.28
  5. Step 5: Solve for x
    x = 8,407,966,830.28/139,931.76
  6. Step 6: Final answer
    x = 60,086.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.