Home / 148,854.59-205,420.31-80,871.54

Finding the Fourth Proportional to 148,854.59, 205,420.31 and 80,871.54

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Solution

The fourth proportional to 148,854.59, 205,420.31 and 80,871.54 is: 111,603.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,854.59 : 205,420.31 = 80,871.54 : x
  2. Step 2: Convert to fraction form
    148,854.59/205,420.31 = 80,871.54/x
  3. Step 3: Cross multiply
    148,854.59x = 205,420.31 × 80,871.54
  4. Step 4: Simplify right side
    148,854.59x = 16,612,656,412.62
  5. Step 5: Solve for x
    x = 16,612,656,412.62/148,854.59
  6. Step 6: Final answer
    x = 111,603.26

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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.