Home / 86,251.68-118,391.40-76,609.44

Finding the Fourth Proportional to 86,251.68, 118,391.40 and 76,609.44

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Solution

The fourth proportional to 86,251.68, 118,391.40 and 76,609.44 is: 105,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,251.68 : 118,391.40 = 76,609.44 : x
  2. Step 2: Convert to fraction form
    86,251.68/118,391.40 = 76,609.44/x
  3. Step 3: Cross multiply
    86,251.68x = 118,391.40 × 76,609.44
  4. Step 4: Simplify right side
    86,251.68x = 9,069,898,854.82
  5. Step 5: Solve for x
    x = 9,069,898,854.82/86,251.68
  6. Step 6: Final answer
    x = 105,156.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.