Home / 148,705.03-205,213.49-80,722.13

Finding the Fourth Proportional to 148,705.03, 205,213.49 and 80,722.13

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Solution

The fourth proportional to 148,705.03, 205,213.49 and 80,722.13 is: 111,396.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,705.03 : 205,213.49 = 80,722.13 : x
  2. Step 2: Convert to fraction form
    148,705.03/205,213.49 = 80,722.13/x
  3. Step 3: Cross multiply
    148,705.03x = 205,213.49 × 80,722.13
  4. Step 4: Simplify right side
    148,705.03x = 16,565,270,017.53
  5. Step 5: Solve for x
    x = 16,565,270,017.53/148,705.03
  6. Step 6: Final answer
    x = 111,396.84

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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.