Home / 148,771.08-205,303.28-80,787.42

Finding the Fourth Proportional to 148,771.08, 205,303.28 and 80,787.42

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Solution

The fourth proportional to 148,771.08, 205,303.28 and 80,787.42 is: 111,486.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,771.08 : 205,303.28 = 80,787.42 : x
  2. Step 2: Convert to fraction form
    148,771.08/205,303.28 = 80,787.42/x
  3. Step 3: Cross multiply
    148,771.08x = 205,303.28 × 80,787.42
  4. Step 4: Simplify right side
    148,771.08x = 16,585,921,904.80
  5. Step 5: Solve for x
    x = 16,585,921,904.80/148,771.08
  6. Step 6: Final answer
    x = 111,486.20

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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.