Home / 69,815.95-103,934.24-69,400.75

Finding the Fourth Proportional to 69,815.95, 103,934.24 and 69,400.75

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Solution

The fourth proportional to 69,815.95, 103,934.24 and 69,400.75 is: 103,316.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,815.95 : 103,934.24 = 69,400.75 : x
  2. Step 2: Convert to fraction form
    69,815.95/103,934.24 = 69,400.75/x
  3. Step 3: Cross multiply
    69,815.95x = 103,934.24 × 69,400.75
  4. Step 4: Simplify right side
    69,815.95x = 7,213,114,206.68
  5. Step 5: Solve for x
    x = 7,213,114,206.68/69,815.95
  6. Step 6: Final answer
    x = 103,316.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.