Home / 156,712.75-216,263.60-89,644.75

Finding the Fourth Proportional to 156,712.75, 216,263.60 and 89,644.75

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Solution

The fourth proportional to 156,712.75, 216,263.60 and 89,644.75 is: 123,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,712.75 : 216,263.60 = 89,644.75 : x
  2. Step 2: Convert to fraction form
    156,712.75/216,263.60 = 89,644.75/x
  3. Step 3: Cross multiply
    156,712.75x = 216,263.60 × 89,644.75
  4. Step 4: Simplify right side
    156,712.75x = 19,386,896,356.10
  5. Step 5: Solve for x
    x = 19,386,896,356.10/156,712.75
  6. Step 6: Final answer
    x = 123,709.76

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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.