Home / 159,645.28-220,312.02-88,028.20

Finding the Fourth Proportional to 159,645.28, 220,312.02 and 88,028.20

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Solution

The fourth proportional to 159,645.28, 220,312.02 and 88,028.20 is: 121,479.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,645.28 : 220,312.02 = 88,028.20 : x
  2. Step 2: Convert to fraction form
    159,645.28/220,312.02 = 88,028.20/x
  3. Step 3: Cross multiply
    159,645.28x = 220,312.02 × 88,028.20
  4. Step 4: Simplify right side
    159,645.28x = 19,393,670,558.96
  5. Step 5: Solve for x
    x = 19,393,670,558.96/159,645.28
  6. Step 6: Final answer
    x = 121,479.76

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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.