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Finding the Fourth Proportional to 125,188.30, 187,794.01 and 40,948.94

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Solution

The fourth proportional to 125,188.30, 187,794.01 and 40,948.94 is: 61,427.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,188.30 : 187,794.01 = 40,948.94 : x
  2. Step 2: Convert to fraction form
    125,188.30/187,794.01 = 40,948.94/x
  3. Step 3: Cross multiply
    125,188.30x = 187,794.01 × 40,948.94
  4. Step 4: Simplify right side
    125,188.30x = 7,689,966,168.52
  5. Step 5: Solve for x
    x = 7,689,966,168.52/125,188.30
  6. Step 6: Final answer
    x = 61,427.19

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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.