Home / 121,331.10-181,953.45-54,803.10

Finding the Fourth Proportional to 121,331.10, 181,953.45 and 54,803.10

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Solution

The fourth proportional to 121,331.10, 181,953.45 and 54,803.10 is: 82,185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,331.10 : 181,953.45 = 54,803.10 : x
  2. Step 2: Convert to fraction form
    121,331.10/181,953.45 = 54,803.10/x
  3. Step 3: Cross multiply
    121,331.10x = 181,953.45 × 54,803.10
  4. Step 4: Simplify right side
    121,331.10x = 9,971,613,115.70
  5. Step 5: Solve for x
    x = 9,971,613,115.70/121,331.10
  6. Step 6: Final answer
    x = 82,185.14

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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.