Home / 159,541.44-220,156.76-87,921.48

Finding the Fourth Proportional to 159,541.44, 220,156.76 and 87,921.48

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Solution

The fourth proportional to 159,541.44, 220,156.76 and 87,921.48 is: 121,325.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,541.44 : 220,156.76 = 87,921.48 : x
  2. Step 2: Convert to fraction form
    159,541.44/220,156.76 = 87,921.48/x
  3. Step 3: Cross multiply
    159,541.44x = 220,156.76 × 87,921.48
  4. Step 4: Simplify right side
    159,541.44x = 19,356,508,171.20
  5. Step 5: Solve for x
    x = 19,356,508,171.20/159,541.44
  6. Step 6: Final answer
    x = 121,325.90

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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.