Home / 159,534.12-220,158.54-87,916.71

Finding the Fourth Proportional to 159,534.12, 220,158.54 and 87,916.71

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Solution

The fourth proportional to 159,534.12, 220,158.54 and 87,916.71 is: 121,325.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,534.12 : 220,158.54 = 87,916.71 : x
  2. Step 2: Convert to fraction form
    159,534.12/220,158.54 = 87,916.71/x
  3. Step 3: Cross multiply
    159,534.12x = 220,158.54 × 87,916.71
  4. Step 4: Simplify right side
    159,534.12x = 19,355,614,515.20
  5. Step 5: Solve for x
    x = 19,355,614,515.20/159,534.12
  6. Step 6: Final answer
    x = 121,325.86

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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.