Home / 131,764.28-181,835-71,335.56

Finding the Fourth Proportional to 131,764.28, 181,835 and 71,335.56

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Solution

The fourth proportional to 131,764.28, 181,835 and 71,335.56 is: 98,443.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,764.28 : 181,835 = 71,335.56 : x
  2. Step 2: Convert to fraction form
    131,764.28/181,835 = 71,335.56/x
  3. Step 3: Cross multiply
    131,764.28x = 181,835 × 71,335.56
  4. Step 4: Simplify right side
    131,764.28x = 12,971,301,552.60
  5. Step 5: Solve for x
    x = 12,971,301,552.60/131,764.28
  6. Step 6: Final answer
    x = 98,443.23

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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.