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Finding the Fourth Proportional to 125,012.53, 187,518.80 and 54,892.45

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Solution

The fourth proportional to 125,012.53, 187,518.80 and 54,892.45 is: 82,338.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,012.53 : 187,518.80 = 54,892.45 : x
  2. Step 2: Convert to fraction form
    125,012.53/187,518.80 = 54,892.45/x
  3. Step 3: Cross multiply
    125,012.53x = 187,518.80 × 54,892.45
  4. Step 4: Simplify right side
    125,012.53x = 10,293,366,353.06
  5. Step 5: Solve for x
    x = 10,293,366,353.06/125,012.53
  6. Step 6: Final answer
    x = 82,338.68

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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.