Home / 120,718.84-181,034.53-54,124.69

Finding the Fourth Proportional to 120,718.84, 181,034.53 and 54,124.69

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Solution

The fourth proportional to 120,718.84, 181,034.53 and 54,124.69 is: 81,167.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,718.84 : 181,034.53 = 54,124.69 : x
  2. Step 2: Convert to fraction form
    120,718.84/181,034.53 = 54,124.69/x
  3. Step 3: Cross multiply
    120,718.84x = 181,034.53 × 54,124.69
  4. Step 4: Simplify right side
    120,718.84x = 9,798,437,815.55
  5. Step 5: Solve for x
    x = 9,798,437,815.55/120,718.84
  6. Step 6: Final answer
    x = 81,167.43

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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.