Home / 158,816.64-219,170.40-90,839.76

Finding the Fourth Proportional to 158,816.64, 219,170.40 and 90,839.76

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Solution

The fourth proportional to 158,816.64, 219,170.40 and 90,839.76 is: 125,360.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,816.64 : 219,170.40 = 90,839.76 : x
  2. Step 2: Convert to fraction form
    158,816.64/219,170.40 = 90,839.76/x
  3. Step 3: Cross multiply
    158,816.64x = 219,170.40 × 90,839.76
  4. Step 4: Simplify right side
    158,816.64x = 19,909,386,535.10
  5. Step 5: Solve for x
    x = 19,909,386,535.10/158,816.64
  6. Step 6: Final answer
    x = 125,360.83

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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.