Home / 121,316.25-181,773.12-73,787.52

Finding the Fourth Proportional to 121,316.25, 181,773.12 and 73,787.52

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Solution

The fourth proportional to 121,316.25, 181,773.12 and 73,787.52 is: 110,558.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,316.25 : 181,773.12 = 73,787.52 : x
  2. Step 2: Convert to fraction form
    121,316.25/181,773.12 = 73,787.52/x
  3. Step 3: Cross multiply
    121,316.25x = 181,773.12 × 73,787.52
  4. Step 4: Simplify right side
    121,316.25x = 13,412,587,727.46
  5. Step 5: Solve for x
    x = 13,412,587,727.46/121,316.25
  6. Step 6: Final answer
    x = 110,558.87

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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.