Home / 156,402.85-234,396.66-81,502.88

Finding the Fourth Proportional to 156,402.85, 234,396.66 and 81,502.88

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Solution

The fourth proportional to 156,402.85, 234,396.66 and 81,502.88 is: 122,146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,402.85 : 234,396.66 = 81,502.88 : x
  2. Step 2: Convert to fraction form
    156,402.85/234,396.66 = 81,502.88/x
  3. Step 3: Cross multiply
    156,402.85x = 234,396.66 × 81,502.88
  4. Step 4: Simplify right side
    156,402.85x = 19,104,003,734.53
  5. Step 5: Solve for x
    x = 19,104,003,734.53/156,402.85
  6. Step 6: Final answer
    x = 122,146.14

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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.