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Finding the Fourth Proportional to 156,650.55, 216,177.03 and 85,029.95

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Solution

The fourth proportional to 156,650.55, 216,177.03 and 85,029.95 is: 117,340.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,650.55 : 216,177.03 = 85,029.95 : x
  2. Step 2: Convert to fraction form
    156,650.55/216,177.03 = 85,029.95/x
  3. Step 3: Cross multiply
    156,650.55x = 216,177.03 × 85,029.95
  4. Step 4: Simplify right side
    156,650.55x = 18,381,520,971.16
  5. Step 5: Solve for x
    x = 18,381,520,971.16/156,650.55
  6. Step 6: Final answer
    x = 117,340.93

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