Home / 102,542.25-153,815.82-40,212.75

Finding the Fourth Proportional to 102,542.25, 153,815.82 and 40,212.75

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Solution

The fourth proportional to 102,542.25, 153,815.82 and 40,212.75 is: 60,320.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,542.25 : 153,815.82 = 40,212.75 : x
  2. Step 2: Convert to fraction form
    102,542.25/153,815.82 = 40,212.75/x
  3. Step 3: Cross multiply
    102,542.25x = 153,815.82 × 40,212.75
  4. Step 4: Simplify right side
    102,542.25x = 6,185,357,115.71
  5. Step 5: Solve for x
    x = 6,185,357,115.71/102,542.25
  6. Step 6: Final answer
    x = 60,320.08

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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.