Home / 121,276.62-181,999.89-67,913.10

Finding the Fourth Proportional to 121,276.62, 181,999.89 and 67,913.10

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Solution

The fourth proportional to 121,276.62, 181,999.89 and 67,913.10 is: 101,917.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,276.62 : 181,999.89 = 67,913.10 : x
  2. Step 2: Convert to fraction form
    121,276.62/181,999.89 = 67,913.10/x
  3. Step 3: Cross multiply
    121,276.62x = 181,999.89 × 67,913.10
  4. Step 4: Simplify right side
    121,276.62x = 12,360,176,729.56
  5. Step 5: Solve for x
    x = 12,360,176,729.56/121,276.62
  6. Step 6: Final answer
    x = 101,917.23

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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.