Home / 111,299.68-153,535.45-68,288.76

Finding the Fourth Proportional to 111,299.68, 153,535.45 and 68,288.76

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Solution

The fourth proportional to 111,299.68, 153,535.45 and 68,288.76 is: 94,202.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,299.68 : 153,535.45 = 68,288.76 : x
  2. Step 2: Convert to fraction form
    111,299.68/153,535.45 = 68,288.76/x
  3. Step 3: Cross multiply
    111,299.68x = 153,535.45 × 68,288.76
  4. Step 4: Simplify right side
    111,299.68x = 10,484,745,155.10
  5. Step 5: Solve for x
    x = 10,484,745,155.10/111,299.68
  6. Step 6: Final answer
    x = 94,202.84

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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.