Home / 105,339.78-145,382.58-60,033.96

Finding the Fourth Proportional to 105,339.78, 145,382.58 and 60,033.96

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Solution

The fourth proportional to 105,339.78, 145,382.58 and 60,033.96 is: 82,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,339.78 : 145,382.58 = 60,033.96 : x
  2. Step 2: Convert to fraction form
    105,339.78/145,382.58 = 60,033.96/x
  3. Step 3: Cross multiply
    105,339.78x = 145,382.58 × 60,033.96
  4. Step 4: Simplify right side
    105,339.78x = 8,727,891,992.42
  5. Step 5: Solve for x
    x = 8,727,891,992.42/105,339.78
  6. Step 6: Final answer
    x = 82,854.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.