Home / 125,125.12-172,672.72-68,538.52

Finding the Fourth Proportional to 125,125.12, 172,672.72 and 68,538.52

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Solution

The fourth proportional to 125,125.12, 172,672.72 and 68,538.52 is: 94,583.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,125.12 : 172,672.72 = 68,538.52 : x
  2. Step 2: Convert to fraction form
    125,125.12/172,672.72 = 68,538.52/x
  3. Step 3: Cross multiply
    125,125.12x = 172,672.72 × 68,538.52
  4. Step 4: Simplify right side
    125,125.12x = 11,834,732,673.17
  5. Step 5: Solve for x
    x = 11,834,732,673.17/125,125.12
  6. Step 6: Final answer
    x = 94,583.19

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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.