Home / 120,864.10-181,123.35-89,025.70

Finding the Fourth Proportional to 120,864.10, 181,123.35 and 89,025.70

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Solution

The fourth proportional to 120,864.10, 181,123.35 and 89,025.70 is: 133,411.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,864.10 : 181,123.35 = 89,025.70 : x
  2. Step 2: Convert to fraction form
    120,864.10/181,123.35 = 89,025.70/x
  3. Step 3: Cross multiply
    120,864.10x = 181,123.35 × 89,025.70
  4. Step 4: Simplify right side
    120,864.10x = 16,124,633,020.10
  5. Step 5: Solve for x
    x = 16,124,633,020.10/120,864.10
  6. Step 6: Final answer
    x = 133,411.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.