Home / 158,116.10-218,202.08-86,494.55

Finding the Fourth Proportional to 158,116.10, 218,202.08 and 86,494.55

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Solution

The fourth proportional to 158,116.10, 218,202.08 and 86,494.55 is: 119,363.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,116.10 : 218,202.08 = 86,494.55 : x
  2. Step 2: Convert to fraction form
    158,116.10/218,202.08 = 86,494.55/x
  3. Step 3: Cross multiply
    158,116.10x = 218,202.08 × 86,494.55
  4. Step 4: Simplify right side
    158,116.10x = 18,873,289,195.18
  5. Step 5: Solve for x
    x = 18,873,289,195.18/158,116.10
  6. Step 6: Final answer
    x = 119,363.49

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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.