Home / 176,601.15-243,696.87-100,121.76

Finding the Fourth Proportional to 176,601.15, 243,696.87 and 100,121.76

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Solution

The fourth proportional to 176,601.15, 243,696.87 and 100,121.76 is: 138,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,601.15 : 243,696.87 = 100,121.76 : x
  2. Step 2: Convert to fraction form
    176,601.15/243,696.87 = 100,121.76/x
  3. Step 3: Cross multiply
    176,601.15x = 243,696.87 × 100,121.76
  4. Step 4: Simplify right side
    176,601.15x = 24,399,359,530.89
  5. Step 5: Solve for x
    x = 24,399,359,530.89/176,601.15
  6. Step 6: Final answer
    x = 138,160.82

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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.