Home / 158,216.20-218,337.56-85,619.04

Finding the Fourth Proportional to 158,216.20, 218,337.56 and 85,619.04

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Solution

The fourth proportional to 158,216.20, 218,337.56 and 85,619.04 is: 118,153.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,216.20 : 218,337.56 = 85,619.04 : x
  2. Step 2: Convert to fraction form
    158,216.20/218,337.56 = 85,619.04/x
  3. Step 3: Cross multiply
    158,216.20x = 218,337.56 × 85,619.04
  4. Step 4: Simplify right side
    158,216.20x = 18,693,851,357.35
  5. Step 5: Solve for x
    x = 18,693,851,357.35/158,216.20
  6. Step 6: Final answer
    x = 118,153.84

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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.