Home / 98,778.84-136,306.19-57,951.20

Finding the Fourth Proportional to 98,778.84, 136,306.19 and 57,951.20

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Solution

The fourth proportional to 98,778.84, 136,306.19 and 57,951.20 is: 79,967.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,778.84 : 136,306.19 = 57,951.20 : x
  2. Step 2: Convert to fraction form
    98,778.84/136,306.19 = 57,951.20/x
  3. Step 3: Cross multiply
    98,778.84x = 136,306.19 × 57,951.20
  4. Step 4: Simplify right side
    98,778.84x = 7,899,107,277.93
  5. Step 5: Solve for x
    x = 7,899,107,277.93/98,778.84
  6. Step 6: Final answer
    x = 79,967.61

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1.5x scale

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.