Home / 156,921.20-235,381.80-51,714.80

Finding the Fourth Proportional to 156,921.20, 235,381.80 and 51,714.80

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Solution

The fourth proportional to 156,921.20, 235,381.80 and 51,714.80 is: 77,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,921.20 : 235,381.80 = 51,714.80 : x
  2. Step 2: Convert to fraction form
    156,921.20/235,381.80 = 51,714.80/x
  3. Step 3: Cross multiply
    156,921.20x = 235,381.80 × 51,714.80
  4. Step 4: Simplify right side
    156,921.20x = 12,172,722,710.64
  5. Step 5: Solve for x
    x = 12,172,722,710.64/156,921.20
  6. Step 6: Final answer
    x = 77,572.20

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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.