Home / 109,582.20-151,171.52-71,327.79

Finding the Fourth Proportional to 109,582.20, 151,171.52 and 71,327.79

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Solution

The fourth proportional to 109,582.20, 151,171.52 and 71,327.79 is: 98,398.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,582.20 : 151,171.52 = 71,327.79 : x
  2. Step 2: Convert to fraction form
    109,582.20/151,171.52 = 71,327.79/x
  3. Step 3: Cross multiply
    109,582.20x = 151,171.52 × 71,327.79
  4. Step 4: Simplify right side
    109,582.20x = 10,782,730,075.90
  5. Step 5: Solve for x
    x = 10,782,730,075.90/109,582.20
  6. Step 6: Final answer
    x = 98,398.56

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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.