Home / 342,040.86-513,062.51-105,382.35

Finding the Fourth Proportional to 342,040.86, 513,062.51 and 105,382.35

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Solution

The fourth proportional to 342,040.86, 513,062.51 and 105,382.35 is: 158,073.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,040.86 : 513,062.51 = 105,382.35 : x
  2. Step 2: Convert to fraction form
    342,040.86/513,062.51 = 105,382.35/x
  3. Step 3: Cross multiply
    342,040.86x = 513,062.51 × 105,382.35
  4. Step 4: Simplify right side
    342,040.86x = 54,067,732,473.79
  5. Step 5: Solve for x
    x = 54,067,732,473.79/342,040.86
  6. Step 6: Final answer
    x = 158,073.90

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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.