Home / 159,392.04-219,961-87,771.88

Finding the Fourth Proportional to 159,392.04, 219,961 and 87,771.88

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Solution

The fourth proportional to 159,392.04, 219,961 and 87,771.88 is: 121,125.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,392.04 : 219,961 = 87,771.88 : x
  2. Step 2: Convert to fraction form
    159,392.04/219,961 = 87,771.88/x
  3. Step 3: Cross multiply
    159,392.04x = 219,961 × 87,771.88
  4. Step 4: Simplify right side
    159,392.04x = 19,306,390,496.68
  5. Step 5: Solve for x
    x = 19,306,390,496.68/159,392.04
  6. Step 6: Final answer
    x = 121,125.19

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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.