Home / 111,500.10-153,922.49-74,768.83

Finding the Fourth Proportional to 111,500.10, 153,922.49 and 74,768.83

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Solution

The fourth proportional to 111,500.10, 153,922.49 and 74,768.83 is: 103,216.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,500.10 : 153,922.49 = 74,768.83 : x
  2. Step 2: Convert to fraction form
    111,500.10/153,922.49 = 74,768.83/x
  3. Step 3: Cross multiply
    111,500.10x = 153,922.49 × 74,768.83
  4. Step 4: Simplify right side
    111,500.10x = 11,508,604,487.99
  5. Step 5: Solve for x
    x = 11,508,604,487.99/111,500.10
  6. Step 6: Final answer
    x = 103,216.09

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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.