Home / 159,747.72-220,449.78-88,130.76

Finding the Fourth Proportional to 159,747.72, 220,449.78 and 88,130.76

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Solution

The fourth proportional to 159,747.72, 220,449.78 and 88,130.76 is: 121,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,747.72 : 220,449.78 = 88,130.76 : x
  2. Step 2: Convert to fraction form
    159,747.72/220,449.78 = 88,130.76/x
  3. Step 3: Cross multiply
    159,747.72x = 220,449.78 × 88,130.76
  4. Step 4: Simplify right side
    159,747.72x = 19,428,406,653.23
  5. Step 5: Solve for x
    x = 19,428,406,653.23/159,747.72
  6. Step 6: Final answer
    x = 121,619.30

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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.