Home / 154,166.28-231,065.34-79,322.28

Finding the Fourth Proportional to 154,166.28, 231,065.34 and 79,322.28

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Solution

The fourth proportional to 154,166.28, 231,065.34 and 79,322.28 is: 118,888.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,166.28 : 231,065.34 = 79,322.28 : x
  2. Step 2: Convert to fraction form
    154,166.28/231,065.34 = 79,322.28/x
  3. Step 3: Cross multiply
    154,166.28x = 231,065.34 × 79,322.28
  4. Step 4: Simplify right side
    154,166.28x = 18,328,629,597.78
  5. Step 5: Solve for x
    x = 18,328,629,597.78/154,166.28
  6. Step 6: Final answer
    x = 118,888.71

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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.