Home / 154,947.16-231,922.48-79,965.18

Finding the Fourth Proportional to 154,947.16, 231,922.48 and 79,965.18

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Solution

The fourth proportional to 154,947.16, 231,922.48 and 79,965.18 is: 119,690.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,947.16 : 231,922.48 = 79,965.18 : x
  2. Step 2: Convert to fraction form
    154,947.16/231,922.48 = 79,965.18/x
  3. Step 3: Cross multiply
    154,947.16x = 231,922.48 × 79,965.18
  4. Step 4: Simplify right side
    154,947.16x = 18,545,722,859.25
  5. Step 5: Solve for x
    x = 18,545,722,859.25/154,947.16
  6. Step 6: Final answer
    x = 119,690.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.