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Finding the Fourth Proportional to 154,170.65, 231,252.69 and 71,064.65

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Solution

The fourth proportional to 154,170.65, 231,252.69 and 71,064.65 is: 106,595.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,170.65 : 231,252.69 = 71,064.65 : x
  2. Step 2: Convert to fraction form
    154,170.65/231,252.69 = 71,064.65/x
  3. Step 3: Cross multiply
    154,170.65x = 231,252.69 × 71,064.65
  4. Step 4: Simplify right side
    154,170.65x = 16,433,891,476.41
  5. Step 5: Solve for x
    x = 16,433,891,476.41/154,170.65
  6. Step 6: Final answer
    x = 106,595.46

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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.