Home / 156,744.73-216,309.32-85,126.15

Finding the Fourth Proportional to 156,744.73, 216,309.32 and 85,126.15

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Solution

The fourth proportional to 156,744.73, 216,309.32 and 85,126.15 is: 117,474.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,744.73 : 216,309.32 = 85,126.15 : x
  2. Step 2: Convert to fraction form
    156,744.73/216,309.32 = 85,126.15/x
  3. Step 3: Cross multiply
    156,744.73x = 216,309.32 × 85,126.15
  4. Step 4: Simplify right side
    156,744.73x = 18,413,579,620.72
  5. Step 5: Solve for x
    x = 18,413,579,620.72/156,744.73
  6. Step 6: Final answer
    x = 117,474.95

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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.