Home / 120,856.11-181,345.59-54,282.66

Finding the Fourth Proportional to 120,856.11, 181,345.59 and 54,282.66

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Solution

The fourth proportional to 120,856.11, 181,345.59 and 54,282.66 is: 81,451.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,856.11 : 181,345.59 = 54,282.66 : x
  2. Step 2: Convert to fraction form
    120,856.11/181,345.59 = 54,282.66/x
  3. Step 3: Cross multiply
    120,856.11x = 181,345.59 × 54,282.66
  4. Step 4: Simplify right side
    120,856.11x = 9,843,921,004.47
  5. Step 5: Solve for x
    x = 9,843,921,004.47/120,856.11
  6. Step 6: Final answer
    x = 81,451.58

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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.