Home / 159,659.06-220,320.45-99,228.15

Finding the Fourth Proportional to 159,659.06, 220,320.45 and 99,228.15

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Solution

The fourth proportional to 159,659.06, 220,320.45 and 99,228.15 is: 136,929.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,659.06 : 220,320.45 = 99,228.15 : x
  2. Step 2: Convert to fraction form
    159,659.06/220,320.45 = 99,228.15/x
  3. Step 3: Cross multiply
    159,659.06x = 220,320.45 × 99,228.15
  4. Step 4: Simplify right side
    159,659.06x = 21,861,990,660.67
  5. Step 5: Solve for x
    x = 21,861,990,660.67/159,659.06
  6. Step 6: Final answer
    x = 136,929.22

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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.