Home / 112,631.78-155,176.97-92,456.71

Finding the Fourth Proportional to 112,631.78, 155,176.97 and 92,456.71

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Solution

The fourth proportional to 112,631.78, 155,176.97 and 92,456.71 is: 127,381.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,631.78 : 155,176.97 = 92,456.71 : x
  2. Step 2: Convert to fraction form
    112,631.78/155,176.97 = 92,456.71/x
  3. Step 3: Cross multiply
    112,631.78x = 155,176.97 × 92,456.71
  4. Step 4: Simplify right side
    112,631.78x = 14,347,151,263.74
  5. Step 5: Solve for x
    x = 14,347,151,263.74/112,631.78
  6. Step 6: Final answer
    x = 127,381.02

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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.