Home / 156,744.82-216,305.80-85,125.30

Finding the Fourth Proportional to 156,744.82, 216,305.80 and 85,125.30

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Solution

The fourth proportional to 156,744.82, 216,305.80 and 85,125.30 is: 117,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,744.82 : 216,305.80 = 85,125.30 : x
  2. Step 2: Convert to fraction form
    156,744.82/216,305.80 = 85,125.30/x
  3. Step 3: Cross multiply
    156,744.82x = 216,305.80 × 85,125.30
  4. Step 4: Simplify right side
    156,744.82x = 18,413,096,116.74
  5. Step 5: Solve for x
    x = 18,413,096,116.74/156,744.82
  6. Step 6: Final answer
    x = 117,471.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.