Home / 90,965.76-136,282.38-65,943.74

Finding the Fourth Proportional to 90,965.76, 136,282.38 and 65,943.74

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Solution

The fourth proportional to 90,965.76, 136,282.38 and 65,943.74 is: 98,795.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,965.76 : 136,282.38 = 65,943.74 : x
  2. Step 2: Convert to fraction form
    90,965.76/136,282.38 = 65,943.74/x
  3. Step 3: Cross multiply
    90,965.76x = 136,282.38 × 65,943.74
  4. Step 4: Simplify right side
    90,965.76x = 8,986,969,833.30
  5. Step 5: Solve for x
    x = 8,986,969,833.30/90,965.76
  6. Step 6: Final answer
    x = 98,795.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.