Home / 156,398.90-234,037.70-135,411.29

Finding the Fourth Proportional to 156,398.90, 234,037.70 and 135,411.29

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Solution

The fourth proportional to 156,398.90, 234,037.70 and 135,411.29 is: 202,631.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,398.90 : 234,037.70 = 135,411.29 : x
  2. Step 2: Convert to fraction form
    156,398.90/234,037.70 = 135,411.29/x
  3. Step 3: Cross multiply
    156,398.90x = 234,037.70 × 135,411.29
  4. Step 4: Simplify right side
    156,398.90x = 31,691,348,481.97
  5. Step 5: Solve for x
    x = 31,691,348,481.97/156,398.90
  6. Step 6: Final answer
    x = 202,631.53

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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.