Home / 103,609.53-142,975.94-61,159.86

Finding the Fourth Proportional to 103,609.53, 142,975.94 and 61,159.86

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Solution

The fourth proportional to 103,609.53, 142,975.94 and 61,159.86 is: 84,397.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,609.53 : 142,975.94 = 61,159.86 : x
  2. Step 2: Convert to fraction form
    103,609.53/142,975.94 = 61,159.86/x
  3. Step 3: Cross multiply
    103,609.53x = 142,975.94 × 61,159.86
  4. Step 4: Simplify right side
    103,609.53x = 8,744,388,167.97
  5. Step 5: Solve for x
    x = 8,744,388,167.97/103,609.53
  6. Step 6: Final answer
    x = 84,397.53

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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.