Home / 198,981.72-274,519.53-127,350.18

Finding the Fourth Proportional to 198,981.72, 274,519.53 and 127,350.18

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Solution

The fourth proportional to 198,981.72, 274,519.53 and 127,350.18 is: 175,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,981.72 : 274,519.53 = 127,350.18 : x
  2. Step 2: Convert to fraction form
    198,981.72/274,519.53 = 127,350.18/x
  3. Step 3: Cross multiply
    198,981.72x = 274,519.53 × 127,350.18
  4. Step 4: Simplify right side
    198,981.72x = 34,960,111,559.02
  5. Step 5: Solve for x
    x = 34,960,111,559.02/198,981.72
  6. Step 6: Final answer
    x = 175,695.09

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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.