Home / 111,925.18-154,471.49-64,169.20

Finding the Fourth Proportional to 111,925.18, 154,471.49 and 64,169.20

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Solution

The fourth proportional to 111,925.18, 154,471.49 and 64,169.20 is: 88,561.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,925.18 : 154,471.49 = 64,169.20 : x
  2. Step 2: Convert to fraction form
    111,925.18/154,471.49 = 64,169.20/x
  3. Step 3: Cross multiply
    111,925.18x = 154,471.49 × 64,169.20
  4. Step 4: Simplify right side
    111,925.18x = 9,912,311,936.11
  5. Step 5: Solve for x
    x = 9,912,311,936.11/111,925.18
  6. Step 6: Final answer
    x = 88,561.95

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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.