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Finding the Fourth Proportional to 125,110.80, 187,666.20 and 83,266.20

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Solution

The fourth proportional to 125,110.80, 187,666.20 and 83,266.20 is: 124,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,110.80 : 187,666.20 = 83,266.20 : x
  2. Step 2: Convert to fraction form
    125,110.80/187,666.20 = 83,266.20/x
  3. Step 3: Cross multiply
    125,110.80x = 187,666.20 × 83,266.20
  4. Step 4: Simplify right side
    125,110.80x = 15,626,251,342.44
  5. Step 5: Solve for x
    x = 15,626,251,342.44/125,110.80
  6. Step 6: Final answer
    x = 124,899.30

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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.