Home / 159,554.08-220,145.96-90,628.20

Finding the Fourth Proportional to 159,554.08, 220,145.96 and 90,628.20

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Solution

The fourth proportional to 159,554.08, 220,145.96 and 90,628.20 is: 125,044.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,554.08 : 220,145.96 = 90,628.20 : x
  2. Step 2: Convert to fraction form
    159,554.08/220,145.96 = 90,628.20/x
  3. Step 3: Cross multiply
    159,554.08x = 220,145.96 × 90,628.20
  4. Step 4: Simplify right side
    159,554.08x = 19,951,432,092.07
  5. Step 5: Solve for x
    x = 19,951,432,092.07/159,554.08
  6. Step 6: Final answer
    x = 125,044.95

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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.