Home / 159,239.28-219,744.72-87,612.60

Finding the Fourth Proportional to 159,239.28, 219,744.72 and 87,612.60

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Solution

The fourth proportional to 159,239.28, 219,744.72 and 87,612.60 is: 120,902.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,239.28 : 219,744.72 = 87,612.60 : x
  2. Step 2: Convert to fraction form
    159,239.28/219,744.72 = 87,612.60/x
  3. Step 3: Cross multiply
    159,239.28x = 219,744.72 × 87,612.60
  4. Step 4: Simplify right side
    159,239.28x = 19,252,406,255.47
  5. Step 5: Solve for x
    x = 19,252,406,255.47/159,239.28
  6. Step 6: Final answer
    x = 120,902.37

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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.