Home / 148,853.16-205,419.60-80,871.48

Finding the Fourth Proportional to 148,853.16, 205,419.60 and 80,871.48

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Solution

The fourth proportional to 148,853.16, 205,419.60 and 80,871.48 is: 111,603.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,853.16 : 205,419.60 = 80,871.48 : x
  2. Step 2: Convert to fraction form
    148,853.16/205,419.60 = 80,871.48/x
  3. Step 3: Cross multiply
    148,853.16x = 205,419.60 × 80,871.48
  4. Step 4: Simplify right side
    148,853.16x = 16,612,587,073.01
  5. Step 5: Solve for x
    x = 16,612,587,073.01/148,853.16
  6. Step 6: Final answer
    x = 111,603.86

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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.