Home / 115,336.71-159,180.56-67,609.11

Finding the Fourth Proportional to 115,336.71, 159,180.56 and 67,609.11

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Solution

The fourth proportional to 115,336.71, 159,180.56 and 67,609.11 is: 93,309.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,336.71 : 159,180.56 = 67,609.11 : x
  2. Step 2: Convert to fraction form
    115,336.71/159,180.56 = 67,609.11/x
  3. Step 3: Cross multiply
    115,336.71x = 159,180.56 × 67,609.11
  4. Step 4: Simplify right side
    115,336.71x = 10,762,055,652.86
  5. Step 5: Solve for x
    x = 10,762,055,652.86/115,336.71
  6. Step 6: Final answer
    x = 93,309.89

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1.5x scale

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.