Home / 158,068.08-218,132.46-86,447.34

Finding the Fourth Proportional to 158,068.08, 218,132.46 and 86,447.34

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Solution

The fourth proportional to 158,068.08, 218,132.46 and 86,447.34 is: 119,296.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,068.08 : 218,132.46 = 86,447.34 : x
  2. Step 2: Convert to fraction form
    158,068.08/218,132.46 = 86,447.34/x
  3. Step 3: Cross multiply
    158,068.08x = 218,132.46 × 86,447.34
  4. Step 4: Simplify right side
    158,068.08x = 18,856,970,934.66
  5. Step 5: Solve for x
    x = 18,856,970,934.66/158,068.08
  6. Step 6: Final answer
    x = 119,296.51

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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.