Home / 159,591.12-220,237.26-87,973.72

Finding the Fourth Proportional to 159,591.12, 220,237.26 and 87,973.72

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Solution

The fourth proportional to 159,591.12, 220,237.26 and 87,973.72 is: 121,404.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,591.12 : 220,237.26 = 87,973.72 : x
  2. Step 2: Convert to fraction form
    159,591.12/220,237.26 = 87,973.72/x
  3. Step 3: Cross multiply
    159,591.12x = 220,237.26 × 87,973.72
  4. Step 4: Simplify right side
    159,591.12x = 19,375,091,044.81
  5. Step 5: Solve for x
    x = 19,375,091,044.81/159,591.12
  6. Step 6: Final answer
    x = 121,404.57

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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.