Home / 159,534.32-220,158.84-87,916.91

Finding the Fourth Proportional to 159,534.32, 220,158.84 and 87,916.91

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Solution

The fourth proportional to 159,534.32, 220,158.84 and 87,916.91 is: 121,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,534.32 : 220,158.84 = 87,916.91 : x
  2. Step 2: Convert to fraction form
    159,534.32/220,158.84 = 87,916.91/x
  3. Step 3: Cross multiply
    159,534.32x = 220,158.84 × 87,916.91
  4. Step 4: Simplify right side
    159,534.32x = 19,355,684,921.98
  5. Step 5: Solve for x
    x = 19,355,684,921.98/159,534.32
  6. Step 6: Final answer
    x = 121,326.15

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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.