Home / 159,282.20-219,759.95-90,360.30

Finding the Fourth Proportional to 159,282.20, 219,759.95 and 90,360.30

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Solution

The fourth proportional to 159,282.20, 219,759.95 and 90,360.30 is: 124,669.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,282.20 : 219,759.95 = 90,360.30 : x
  2. Step 2: Convert to fraction form
    159,282.20/219,759.95 = 90,360.30/x
  3. Step 3: Cross multiply
    159,282.20x = 219,759.95 × 90,360.30
  4. Step 4: Simplify right side
    159,282.20x = 19,857,575,009.99
  5. Step 5: Solve for x
    x = 19,857,575,009.99/159,282.20
  6. Step 6: Final answer
    x = 124,669.14

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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.