Home / 148,689.32-205,191.45-80,706.30

Finding the Fourth Proportional to 148,689.32, 205,191.45 and 80,706.30

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Solution

The fourth proportional to 148,689.32, 205,191.45 and 80,706.30 is: 111,374.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,689.32 : 205,191.45 = 80,706.30 : x
  2. Step 2: Convert to fraction form
    148,689.32/205,191.45 = 80,706.30/x
  3. Step 3: Cross multiply
    148,689.32x = 205,191.45 × 80,706.30
  4. Step 4: Simplify right side
    148,689.32x = 16,560,242,721.14
  5. Step 5: Solve for x
    x = 16,560,242,721.14/148,689.32
  6. Step 6: Final answer
    x = 111,374.80

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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.