Home / 187,174.20-280,761.30-153,931.80

Finding the Fourth Proportional to 187,174.20, 280,761.30 and 153,931.80

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Solution

The fourth proportional to 187,174.20, 280,761.30 and 153,931.80 is: 230,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,174.20 : 280,761.30 = 153,931.80 : x
  2. Step 2: Convert to fraction form
    187,174.20/280,761.30 = 153,931.80/x
  3. Step 3: Cross multiply
    187,174.20x = 280,761.30 × 153,931.80
  4. Step 4: Simplify right side
    187,174.20x = 43,218,092,279.34
  5. Step 5: Solve for x
    x = 43,218,092,279.34/187,174.20
  6. Step 6: Final answer
    x = 230,897.70

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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.