Home / 156,877.20-235,315.80-83,149.20

Finding the Fourth Proportional to 156,877.20, 235,315.80 and 83,149.20

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Solution

The fourth proportional to 156,877.20, 235,315.80 and 83,149.20 is: 124,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,877.20 : 235,315.80 = 83,149.20 : x
  2. Step 2: Convert to fraction form
    156,877.20/235,315.80 = 83,149.20/x
  3. Step 3: Cross multiply
    156,877.20x = 235,315.80 × 83,149.20
  4. Step 4: Simplify right side
    156,877.20x = 19,566,320,517.36
  5. Step 5: Solve for x
    x = 19,566,320,517.36/156,877.20
  6. Step 6: Final answer
    x = 124,723.80

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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.