Home / 105,925.12-158,908.16-40,256

Finding the Fourth Proportional to 105,925.12, 158,908.16 and 40,256

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Solution

The fourth proportional to 105,925.12, 158,908.16 and 40,256 is: 60,391.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,925.12 : 158,908.16 = 40,256 : x
  2. Step 2: Convert to fraction form
    105,925.12/158,908.16 = 40,256/x
  3. Step 3: Cross multiply
    105,925.12x = 158,908.16 × 40,256
  4. Step 4: Simplify right side
    105,925.12x = 6,397,006,888.96
  5. Step 5: Solve for x
    x = 6,397,006,888.96/105,925.12
  6. Step 6: Final answer
    x = 60,391.78

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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.