Home / 156,790.76-216,367.62-85,169.18

Finding the Fourth Proportional to 156,790.76, 216,367.62 and 85,169.18

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Solution

The fourth proportional to 156,790.76, 216,367.62 and 85,169.18 is: 117,531.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,790.76 : 216,367.62 = 85,169.18 : x
  2. Step 2: Convert to fraction form
    156,790.76/216,367.62 = 85,169.18/x
  3. Step 3: Cross multiply
    156,790.76x = 216,367.62 × 85,169.18
  4. Step 4: Simplify right side
    156,790.76x = 18,427,852,773.95
  5. Step 5: Solve for x
    x = 18,427,852,773.95/156,790.76
  6. Step 6: Final answer
    x = 117,531.50

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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.