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Finding the Fourth Proportional to 125,568.90, 188,131.95 and 66,273.93

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Solution

The fourth proportional to 125,568.90, 188,131.95 and 66,273.93 is: 99,294.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,568.90 : 188,131.95 = 66,273.93 : x
  2. Step 2: Convert to fraction form
    125,568.90/188,131.95 = 66,273.93/x
  3. Step 3: Cross multiply
    125,568.90x = 188,131.95 × 66,273.93
  4. Step 4: Simplify right side
    125,568.90x = 12,468,243,685.06
  5. Step 5: Solve for x
    x = 12,468,243,685.06/125,568.90
  6. Step 6: Final answer
    x = 99,294.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.