Home / 120,856.17-181,222.01-54,239.19

Finding the Fourth Proportional to 120,856.17, 181,222.01 and 54,239.19

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Solution

The fourth proportional to 120,856.17, 181,222.01 and 54,239.19 is: 81,330.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,856.17 : 181,222.01 = 54,239.19 : x
  2. Step 2: Convert to fraction form
    120,856.17/181,222.01 = 54,239.19/x
  3. Step 3: Cross multiply
    120,856.17x = 181,222.01 × 54,239.19
  4. Step 4: Simplify right side
    120,856.17x = 9,829,334,761.38
  5. Step 5: Solve for x
    x = 9,829,334,761.38/120,856.17
  6. Step 6: Final answer
    x = 81,330.85

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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.