Home / 245,487.11-338,766.87-142,125.65

Finding the Fourth Proportional to 245,487.11, 338,766.87 and 142,125.65

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Solution

The fourth proportional to 245,487.11, 338,766.87 and 142,125.65 is: 196,130.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,487.11 : 338,766.87 = 142,125.65 : x
  2. Step 2: Convert to fraction form
    245,487.11/338,766.87 = 142,125.65/x
  3. Step 3: Cross multiply
    245,487.11x = 338,766.87 × 142,125.65
  4. Step 4: Simplify right side
    245,487.11x = 48,147,461,706.73
  5. Step 5: Solve for x
    x = 48,147,461,706.73/245,487.11
  6. Step 6: Final answer
    x = 196,130.31

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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.