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Finding the Fourth Proportional to 123,750.90, 185,407.65 and 115,877.70

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Solution

The fourth proportional to 123,750.90, 185,407.65 and 115,877.70 is: 173,611.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,750.90 : 185,407.65 = 115,877.70 : x
  2. Step 2: Convert to fraction form
    123,750.90/185,407.65 = 115,877.70/x
  3. Step 3: Cross multiply
    123,750.90x = 185,407.65 × 115,877.70
  4. Step 4: Simplify right side
    123,750.90x = 21,484,612,044.41
  5. Step 5: Solve for x
    x = 21,484,612,044.41/123,750.90
  6. Step 6: Final answer
    x = 173,611.76

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1.5x scale

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.