Home / 125,126.16-172,678.40-68,537.53

Finding the Fourth Proportional to 125,126.16, 172,678.40 and 68,537.53

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Solution

The fourth proportional to 125,126.16, 172,678.40 and 68,537.53 is: 94,584.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,126.16 : 172,678.40 = 68,537.53 : x
  2. Step 2: Convert to fraction form
    125,126.16/172,678.40 = 68,537.53/x
  3. Step 3: Cross multiply
    125,126.16x = 172,678.40 × 68,537.53
  4. Step 4: Simplify right side
    125,126.16x = 11,834,951,020.35
  5. Step 5: Solve for x
    x = 11,834,951,020.35/125,126.16
  6. Step 6: Final answer
    x = 94,584.15

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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.