Home / 159,542.72-220,169.82-91,554.28

Finding the Fourth Proportional to 159,542.72, 220,169.82 and 91,554.28

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Solution

The fourth proportional to 159,542.72, 220,169.82 and 91,554.28 is: 126,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,542.72 : 220,169.82 = 91,554.28 : x
  2. Step 2: Convert to fraction form
    159,542.72/220,169.82 = 91,554.28/x
  3. Step 3: Cross multiply
    159,542.72x = 220,169.82 × 91,554.28
  4. Step 4: Simplify right side
    159,542.72x = 20,157,489,347.83
  5. Step 5: Solve for x
    x = 20,157,489,347.83/159,542.72
  6. Step 6: Final answer
    x = 126,345.40

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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.