Home / 159,785.28-220,503.20-88,164.68

Finding the Fourth Proportional to 159,785.28, 220,503.20 and 88,164.68

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Solution

The fourth proportional to 159,785.28, 220,503.20 and 88,164.68 is: 121,666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,785.28 : 220,503.20 = 88,164.68 : x
  2. Step 2: Convert to fraction form
    159,785.28/220,503.20 = 88,164.68/x
  3. Step 3: Cross multiply
    159,785.28x = 220,503.20 × 88,164.68
  4. Step 4: Simplify right side
    159,785.28x = 19,440,592,523.64
  5. Step 5: Solve for x
    x = 19,440,592,523.64/159,785.28
  6. Step 6: Final answer
    x = 121,666.98

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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.