Home / 112,780.22-155,281.64-95,750.78

Finding the Fourth Proportional to 112,780.22, 155,281.64 and 95,750.78

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Solution

The fourth proportional to 112,780.22, 155,281.64 and 95,750.78 is: 131,834.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,780.22 : 155,281.64 = 95,750.78 : x
  2. Step 2: Convert to fraction form
    112,780.22/155,281.64 = 95,750.78/x
  3. Step 3: Cross multiply
    112,780.22x = 155,281.64 × 95,750.78
  4. Step 4: Simplify right side
    112,780.22x = 14,868,336,894.52
  5. Step 5: Solve for x
    x = 14,868,336,894.52/112,780.22
  6. Step 6: Final answer
    x = 131,834.62

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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.