Home / 124,709.90-187,081.78-40,442.58

Finding the Fourth Proportional to 124,709.90, 187,081.78 and 40,442.58

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Solution

The fourth proportional to 124,709.90, 187,081.78 and 40,442.58 is: 60,669.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,709.90 : 187,081.78 = 40,442.58 : x
  2. Step 2: Convert to fraction form
    124,709.90/187,081.78 = 40,442.58/x
  3. Step 3: Cross multiply
    124,709.90x = 187,081.78 × 40,442.58
  4. Step 4: Simplify right side
    124,709.90x = 7,566,069,854.19
  5. Step 5: Solve for x
    x = 7,566,069,854.19/124,709.90
  6. Step 6: Final answer
    x = 60,669.36

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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.