Home / 156,972.80-235,498.89-68,242.16

Finding the Fourth Proportional to 156,972.80, 235,498.89 and 68,242.16

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Solution

The fourth proportional to 156,972.80, 235,498.89 and 68,242.16 is: 102,380.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.80 : 235,498.89 = 68,242.16 : x
  2. Step 2: Convert to fraction form
    156,972.80/235,498.89 = 68,242.16/x
  3. Step 3: Cross multiply
    156,972.80x = 235,498.89 × 68,242.16
  4. Step 4: Simplify right side
    156,972.80x = 16,070,952,931.20
  5. Step 5: Solve for x
    x = 16,070,952,931.20/156,972.80
  6. Step 6: Final answer
    x = 102,380.49

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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.