Home / 148,903.03-205,488.18-80,921.35

Finding the Fourth Proportional to 148,903.03, 205,488.18 and 80,921.35

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Solution

The fourth proportional to 148,903.03, 205,488.18 and 80,921.35 is: 111,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,903.03 : 205,488.18 = 80,921.35 : x
  2. Step 2: Convert to fraction form
    148,903.03/205,488.18 = 80,921.35/x
  3. Step 3: Cross multiply
    148,903.03x = 205,488.18 × 80,921.35
  4. Step 4: Simplify right side
    148,903.03x = 16,628,380,934.64
  5. Step 5: Solve for x
    x = 16,628,380,934.64/148,903.03
  6. Step 6: Final answer
    x = 111,672.55

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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.