Home / 148,829.74-205,379.15-88,398.78

Finding the Fourth Proportional to 148,829.74, 205,379.15 and 88,398.78

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Solution

The fourth proportional to 148,829.74, 205,379.15 and 88,398.78 is: 121,986.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,829.74 : 205,379.15 = 88,398.78 : x
  2. Step 2: Convert to fraction form
    148,829.74/205,379.15 = 88,398.78/x
  3. Step 3: Cross multiply
    148,829.74x = 205,379.15 × 88,398.78
  4. Step 4: Simplify right side
    148,829.74x = 18,155,265,085.27
  5. Step 5: Solve for x
    x = 18,155,265,085.27/148,829.74
  6. Step 6: Final answer
    x = 121,986.81

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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.