Home / 113,499.13-156,639.73-63,198.13

Finding the Fourth Proportional to 113,499.13, 156,639.73 and 63,198.13

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Solution

The fourth proportional to 113,499.13, 156,639.73 and 63,198.13 is: 87,219.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,499.13 : 156,639.73 = 63,198.13 : x
  2. Step 2: Convert to fraction form
    113,499.13/156,639.73 = 63,198.13/x
  3. Step 3: Cross multiply
    113,499.13x = 156,639.73 × 63,198.13
  4. Step 4: Simplify right side
    113,499.13x = 9,899,338,019.70
  5. Step 5: Solve for x
    x = 9,899,338,019.70/113,499.13
  6. Step 6: Final answer
    x = 87,219.51

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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.