Home / 113,619.20-156,803.45-62,640.95

Finding the Fourth Proportional to 113,619.20, 156,803.45 and 62,640.95

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Solution

The fourth proportional to 113,619.20, 156,803.45 and 62,640.95 is: 86,449.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,619.20 : 156,803.45 = 62,640.95 : x
  2. Step 2: Convert to fraction form
    113,619.20/156,803.45 = 62,640.95/x
  3. Step 3: Cross multiply
    113,619.20x = 156,803.45 × 62,640.95
  4. Step 4: Simplify right side
    113,619.20x = 9,822,315,974.06
  5. Step 5: Solve for x
    x = 9,822,315,974.06/113,619.20
  6. Step 6: Final answer
    x = 86,449.44

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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.