Home / 159,281.20-219,758.57-90,359.30

Finding the Fourth Proportional to 159,281.20, 219,758.57 and 90,359.30

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Solution

The fourth proportional to 159,281.20, 219,758.57 and 90,359.30 is: 124,667.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,281.20 : 219,758.57 = 90,359.30 : x
  2. Step 2: Convert to fraction form
    159,281.20/219,758.57 = 90,359.30/x
  3. Step 3: Cross multiply
    159,281.20x = 219,758.57 × 90,359.30
  4. Step 4: Simplify right side
    159,281.20x = 19,857,229,754.51
  5. Step 5: Solve for x
    x = 19,857,229,754.51/159,281.20
  6. Step 6: Final answer
    x = 124,667.75

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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.