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Finding the Fourth Proportional to 125,006.64, 187,510.80 and 51,134.64

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Solution

The fourth proportional to 125,006.64, 187,510.80 and 51,134.64 is: 76,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,006.64 : 187,510.80 = 51,134.64 : x
  2. Step 2: Convert to fraction form
    125,006.64/187,510.80 = 51,134.64/x
  3. Step 3: Cross multiply
    125,006.64x = 187,510.80 × 51,134.64
  4. Step 4: Simplify right side
    125,006.64x = 9,588,297,254.11
  5. Step 5: Solve for x
    x = 9,588,297,254.11/125,006.64
  6. Step 6: Final answer
    x = 76,702.30

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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.