Home / 121,287.18-181,854.42-37,019.31

Finding the Fourth Proportional to 121,287.18, 181,854.42 and 37,019.31

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Solution

The fourth proportional to 121,287.18, 181,854.42 and 37,019.31 is: 55,505.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,287.18 : 181,854.42 = 37,019.31 : x
  2. Step 2: Convert to fraction form
    121,287.18/181,854.42 = 37,019.31/x
  3. Step 3: Cross multiply
    121,287.18x = 181,854.42 × 37,019.31
  4. Step 4: Simplify right side
    121,287.18x = 6,732,125,148.85
  5. Step 5: Solve for x
    x = 6,732,125,148.85/121,287.18
  6. Step 6: Final answer
    x = 55,505.66

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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.