Home / 158,289.60-218,440.68-86,676.24

Finding the Fourth Proportional to 158,289.60, 218,440.68 and 86,676.24

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Solution

The fourth proportional to 158,289.60, 218,440.68 and 86,676.24 is: 119,613.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,289.60 : 218,440.68 = 86,676.24 : x
  2. Step 2: Convert to fraction form
    158,289.60/218,440.68 = 86,676.24/x
  3. Step 3: Cross multiply
    158,289.60x = 218,440.68 × 86,676.24
  4. Step 4: Simplify right side
    158,289.60x = 18,933,616,805.44
  5. Step 5: Solve for x
    x = 18,933,616,805.44/158,289.60
  6. Step 6: Final answer
    x = 119,613.78

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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.