Home / 144,119.32-198,876.40-80,461.16

Finding the Fourth Proportional to 144,119.32, 198,876.40 and 80,461.16

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Solution

The fourth proportional to 144,119.32, 198,876.40 and 80,461.16 is: 111,031.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,119.32 : 198,876.40 = 80,461.16 : x
  2. Step 2: Convert to fraction form
    144,119.32/198,876.40 = 80,461.16/x
  3. Step 3: Cross multiply
    144,119.32x = 198,876.40 × 80,461.16
  4. Step 4: Simplify right side
    144,119.32x = 16,001,825,840.62
  5. Step 5: Solve for x
    x = 16,001,825,840.62/144,119.32
  6. Step 6: Final answer
    x = 111,031.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.