Home / 121,105.13-181,687.05-37,999.13

Finding the Fourth Proportional to 121,105.13, 181,687.05 and 37,999.13

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Solution

The fourth proportional to 121,105.13, 181,687.05 and 37,999.13 is: 57,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,105.13 : 181,687.05 = 37,999.13 : x
  2. Step 2: Convert to fraction form
    121,105.13/181,687.05 = 37,999.13/x
  3. Step 3: Cross multiply
    121,105.13x = 181,687.05 × 37,999.13
  4. Step 4: Simplify right side
    121,105.13x = 6,903,948,923.83
  5. Step 5: Solve for x
    x = 6,903,948,923.83/121,105.13
  6. Step 6: Final answer
    x = 57,007.90

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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.