Home / 159,001.25-219,420.97-91,017.88

Finding the Fourth Proportional to 159,001.25, 219,420.97 and 91,017.88

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Solution

The fourth proportional to 159,001.25, 219,420.97 and 91,017.88 is: 125,604.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,001.25 : 219,420.97 = 91,017.88 : x
  2. Step 2: Convert to fraction form
    159,001.25/219,420.97 = 91,017.88/x
  3. Step 3: Cross multiply
    159,001.25x = 219,420.97 × 91,017.88
  4. Step 4: Simplify right side
    159,001.25x = 19,971,230,740.85
  5. Step 5: Solve for x
    x = 19,971,230,740.85/159,001.25
  6. Step 6: Final answer
    x = 125,604.24

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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.