Home / 158,194.69-218,308.17-86,575.30

Finding the Fourth Proportional to 158,194.69, 218,308.17 and 86,575.30

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Solution

The fourth proportional to 158,194.69, 218,308.17 and 86,575.30 is: 119,473.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,194.69 : 218,308.17 = 86,575.30 : x
  2. Step 2: Convert to fraction form
    158,194.69/218,308.17 = 86,575.30/x
  3. Step 3: Cross multiply
    158,194.69x = 218,308.17 × 86,575.30
  4. Step 4: Simplify right side
    158,194.69x = 18,900,095,310.20
  5. Step 5: Solve for x
    x = 18,900,095,310.20/158,194.69
  6. Step 6: Final answer
    x = 119,473.64

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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.