Home / 120,854.61-181,343.34-54,281.16

Finding the Fourth Proportional to 120,854.61, 181,343.34 and 54,281.16

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Solution

The fourth proportional to 120,854.61, 181,343.34 and 54,281.16 is: 81,449.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,854.61 : 181,343.34 = 54,281.16 : x
  2. Step 2: Convert to fraction form
    120,854.61/181,343.34 = 54,281.16/x
  3. Step 3: Cross multiply
    120,854.61x = 181,343.34 × 54,281.16
  4. Step 4: Simplify right side
    120,854.61x = 9,843,526,853.47
  5. Step 5: Solve for x
    x = 9,843,526,853.47/120,854.61
  6. Step 6: Final answer
    x = 81,449.33

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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.