Home / 159,438.03-220,034.46-87,818.04

Finding the Fourth Proportional to 159,438.03, 220,034.46 and 87,818.04

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Solution

The fourth proportional to 159,438.03, 220,034.46 and 87,818.04 is: 121,194.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,438.03 : 220,034.46 = 87,818.04 : x
  2. Step 2: Convert to fraction form
    159,438.03/220,034.46 = 87,818.04/x
  3. Step 3: Cross multiply
    159,438.03x = 220,034.46 × 87,818.04
  4. Step 4: Simplify right side
    159,438.03x = 19,322,995,009.66
  5. Step 5: Solve for x
    x = 19,322,995,009.66/159,438.03
  6. Step 6: Final answer
    x = 121,194.39

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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.