Home / 120,853.55-181,218.06-54,236.59

Finding the Fourth Proportional to 120,853.55, 181,218.06 and 54,236.59

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Solution

The fourth proportional to 120,853.55, 181,218.06 and 54,236.59 is: 81,326.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,853.55 : 181,218.06 = 54,236.59 : x
  2. Step 2: Convert to fraction form
    120,853.55/181,218.06 = 54,236.59/x
  3. Step 3: Cross multiply
    120,853.55x = 181,218.06 × 54,236.59
  4. Step 4: Simplify right side
    120,853.55x = 9,828,649,167.77
  5. Step 5: Solve for x
    x = 9,828,649,167.77/120,853.55
  6. Step 6: Final answer
    x = 81,326.94

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1.5x scale

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.