Home / 132,410.90-182,728.22-71,981.66

Finding the Fourth Proportional to 132,410.90, 182,728.22 and 71,981.66

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Solution

The fourth proportional to 132,410.90, 182,728.22 and 71,981.66 is: 99,335.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,410.90 : 182,728.22 = 71,981.66 : x
  2. Step 2: Convert to fraction form
    132,410.90/182,728.22 = 71,981.66/x
  3. Step 3: Cross multiply
    132,410.90x = 182,728.22 × 71,981.66
  4. Step 4: Simplify right side
    132,410.90x = 13,153,079,330.90
  5. Step 5: Solve for x
    x = 13,153,079,330.90/132,410.90
  6. Step 6: Final answer
    x = 99,335.33

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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.