Home / 159,612.56-220,266.88-87,995.20

Finding the Fourth Proportional to 159,612.56, 220,266.88 and 87,995.20

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Solution

The fourth proportional to 159,612.56, 220,266.88 and 87,995.20 is: 121,434.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,612.56 : 220,266.88 = 87,995.20 : x
  2. Step 2: Convert to fraction form
    159,612.56/220,266.88 = 87,995.20/x
  3. Step 3: Cross multiply
    159,612.56x = 220,266.88 × 87,995.20
  4. Step 4: Simplify right side
    159,612.56x = 19,382,428,158.98
  5. Step 5: Solve for x
    x = 19,382,428,158.98/159,612.56
  6. Step 6: Final answer
    x = 121,434.23

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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.