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Finding the Fourth Proportional to 125,068.56, 172,595.71 and 74,084.19

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Solution

The fourth proportional to 125,068.56, 172,595.71 and 74,084.19 is: 102,236.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,068.56 : 172,595.71 = 74,084.19 : x
  2. Step 2: Convert to fraction form
    125,068.56/172,595.71 = 74,084.19/x
  3. Step 3: Cross multiply
    125,068.56x = 172,595.71 × 74,084.19
  4. Step 4: Simplify right side
    125,068.56x = 12,786,613,372.82
  5. Step 5: Solve for x
    x = 12,786,613,372.82/125,068.56
  6. Step 6: Final answer
    x = 102,236.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.