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Finding the Fourth Proportional to 154,653.85, 231,923.86 and 53,426.14

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Solution

The fourth proportional to 154,653.85, 231,923.86 and 53,426.14 is: 80,119.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,653.85 : 231,923.86 = 53,426.14 : x
  2. Step 2: Convert to fraction form
    154,653.85/231,923.86 = 53,426.14/x
  3. Step 3: Cross multiply
    154,653.85x = 231,923.86 × 53,426.14
  4. Step 4: Simplify right side
    154,653.85x = 12,390,796,613.70
  5. Step 5: Solve for x
    x = 12,390,796,613.70/154,653.85
  6. Step 6: Final answer
    x = 80,119.55

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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.