Home / 90,996.16-136,521.35-65,752.71

Finding the Fourth Proportional to 90,996.16, 136,521.35 and 65,752.71

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Solution

The fourth proportional to 90,996.16, 136,521.35 and 65,752.71 is: 98,648.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,996.16 : 136,521.35 = 65,752.71 : x
  2. Step 2: Convert to fraction form
    90,996.16/136,521.35 = 65,752.71/x
  3. Step 3: Cross multiply
    90,996.16x = 136,521.35 × 65,752.71
  4. Step 4: Simplify right side
    90,996.16x = 8,976,648,735.36
  5. Step 5: Solve for x
    x = 8,976,648,735.36/90,996.16
  6. Step 6: Final answer
    x = 98,648.65

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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.