Home / 132,157.78-182,373.09-71,727.20

Finding the Fourth Proportional to 132,157.78, 182,373.09 and 71,727.20

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Solution

The fourth proportional to 132,157.78, 182,373.09 and 71,727.20 is: 98,981.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,157.78 : 182,373.09 = 71,727.20 : x
  2. Step 2: Convert to fraction form
    132,157.78/182,373.09 = 71,727.20/x
  3. Step 3: Cross multiply
    132,157.78x = 182,373.09 × 71,727.20
  4. Step 4: Simplify right side
    132,157.78x = 13,081,112,235.15
  5. Step 5: Solve for x
    x = 13,081,112,235.15/132,157.78
  6. Step 6: Final answer
    x = 98,981.02

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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.