Home / 185,981.40-278,972.10-61,306.20

Finding the Fourth Proportional to 185,981.40, 278,972.10 and 61,306.20

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Solution

The fourth proportional to 185,981.40, 278,972.10 and 61,306.20 is: 91,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,981.40 : 278,972.10 = 61,306.20 : x
  2. Step 2: Convert to fraction form
    185,981.40/278,972.10 = 61,306.20/x
  3. Step 3: Cross multiply
    185,981.40x = 278,972.10 × 61,306.20
  4. Step 4: Simplify right side
    185,981.40x = 17,102,719,357.02
  5. Step 5: Solve for x
    x = 17,102,719,357.02/185,981.40
  6. Step 6: Final answer
    x = 91,959.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.