Home / 103,175.68-142,407.72-62,911.60

Finding the Fourth Proportional to 103,175.68, 142,407.72 and 62,911.60

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Solution

The fourth proportional to 103,175.68, 142,407.72 and 62,911.60 is: 86,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,175.68 : 142,407.72 = 62,911.60 : x
  2. Step 2: Convert to fraction form
    103,175.68/142,407.72 = 62,911.60/x
  3. Step 3: Cross multiply
    103,175.68x = 142,407.72 × 62,911.60
  4. Step 4: Simplify right side
    103,175.68x = 8,959,097,517.55
  5. Step 5: Solve for x
    x = 8,959,097,517.55/103,175.68
  6. Step 6: Final answer
    x = 86,833.42

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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.