Home / 158,221.67-218,451.61-93,711.65

Finding the Fourth Proportional to 158,221.67, 218,451.61 and 93,711.65

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Solution

The fourth proportional to 158,221.67, 218,451.61 and 93,711.65 is: 129,384.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,221.67 : 218,451.61 = 93,711.65 : x
  2. Step 2: Convert to fraction form
    158,221.67/218,451.61 = 93,711.65/x
  3. Step 3: Cross multiply
    158,221.67x = 218,451.61 × 93,711.65
  4. Step 4: Simplify right side
    158,221.67x = 20,471,460,818.26
  5. Step 5: Solve for x
    x = 20,471,460,818.26/158,221.67
  6. Step 6: Final answer
    x = 129,384.68

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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.