Home / 148,623.62-205,097.31-80,640.72

Finding the Fourth Proportional to 148,623.62, 205,097.31 and 80,640.72

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Solution

The fourth proportional to 148,623.62, 205,097.31 and 80,640.72 is: 111,282.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,623.62 : 205,097.31 = 80,640.72 : x
  2. Step 2: Convert to fraction form
    148,623.62/205,097.31 = 80,640.72/x
  3. Step 3: Cross multiply
    148,623.62x = 205,097.31 × 80,640.72
  4. Step 4: Simplify right side
    148,623.62x = 16,539,194,748.46
  5. Step 5: Solve for x
    x = 16,539,194,748.46/148,623.62
  6. Step 6: Final answer
    x = 111,282.41

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1.5x scale

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.