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Finding the Fourth Proportional to 187,150.80, 280,726.20 and 54,035.40

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Solution

The fourth proportional to 187,150.80, 280,726.20 and 54,035.40 is: 81,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,150.80 : 280,726.20 = 54,035.40 : x
  2. Step 2: Convert to fraction form
    187,150.80/280,726.20 = 54,035.40/x
  3. Step 3: Cross multiply
    187,150.80x = 280,726.20 × 54,035.40
  4. Step 4: Simplify right side
    187,150.80x = 15,169,152,507.48
  5. Step 5: Solve for x
    x = 15,169,152,507.48/187,150.80
  6. Step 6: Final answer
    x = 81,053.10

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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.