Home / 132,079.14-182,221.38-86,781.51

Finding the Fourth Proportional to 132,079.14, 182,221.38 and 86,781.51

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Solution

The fourth proportional to 132,079.14, 182,221.38 and 86,781.51 is: 119,727.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,079.14 : 182,221.38 = 86,781.51 : x
  2. Step 2: Convert to fraction form
    132,079.14/182,221.38 = 86,781.51/x
  3. Step 3: Cross multiply
    132,079.14x = 182,221.38 × 86,781.51
  4. Step 4: Simplify right side
    132,079.14x = 15,813,446,510.68
  5. Step 5: Solve for x
    x = 15,813,446,510.68/132,079.14
  6. Step 6: Final answer
    x = 119,727.06

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1.5x scale

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.