Home / 158,132.59-218,228.18-86,510.97

Finding the Fourth Proportional to 158,132.59, 218,228.18 and 86,510.97

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Solution

The fourth proportional to 158,132.59, 218,228.18 and 86,510.97 is: 119,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,132.59 : 218,228.18 = 86,510.97 : x
  2. Step 2: Convert to fraction form
    158,132.59/218,228.18 = 86,510.97/x
  3. Step 3: Cross multiply
    158,132.59x = 218,228.18 × 86,510.97
  4. Step 4: Simplify right side
    158,132.59x = 18,879,131,100.58
  5. Step 5: Solve for x
    x = 18,879,131,100.58/158,132.59
  6. Step 6: Final answer
    x = 119,387.99

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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.