Home / 145,702.16-218,553.48-40,521.20

Finding the Fourth Proportional to 145,702.16, 218,553.48 and 40,521.20

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Solution

The fourth proportional to 145,702.16, 218,553.48 and 40,521.20 is: 60,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,702.16 : 218,553.48 = 40,521.20 : x
  2. Step 2: Convert to fraction form
    145,702.16/218,553.48 = 40,521.20/x
  3. Step 3: Cross multiply
    145,702.16x = 218,553.48 × 40,521.20
  4. Step 4: Simplify right side
    145,702.16x = 8,856,049,273.78
  5. Step 5: Solve for x
    x = 8,856,049,273.78/145,702.16
  6. Step 6: Final answer
    x = 60,781.87

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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.