Home / 94,931.86-142,135.31-71,487.22

Finding the Fourth Proportional to 94,931.86, 142,135.31 and 71,487.22

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Solution

The fourth proportional to 94,931.86, 142,135.31 and 71,487.22 is: 107,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,931.86 : 142,135.31 = 71,487.22 : x
  2. Step 2: Convert to fraction form
    94,931.86/142,135.31 = 71,487.22/x
  3. Step 3: Cross multiply
    94,931.86x = 142,135.31 × 71,487.22
  4. Step 4: Simplify right side
    94,931.86x = 10,160,858,175.74
  5. Step 5: Solve for x
    x = 10,160,858,175.74/94,931.86
  6. Step 6: Final answer
    x = 107,033.17

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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.