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Finding the Fourth Proportional to 103,171.68, 154,559.88 and 69,834.24

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Solution

The fourth proportional to 103,171.68, 154,559.88 and 69,834.24 is: 104,617.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,171.68 : 154,559.88 = 69,834.24 : x
  2. Step 2: Convert to fraction form
    103,171.68/154,559.88 = 69,834.24/x
  3. Step 3: Cross multiply
    103,171.68x = 154,559.88 × 69,834.24
  4. Step 4: Simplify right side
    103,171.68x = 10,793,571,754.29
  5. Step 5: Solve for x
    x = 10,793,571,754.29/103,171.68
  6. Step 6: Final answer
    x = 104,617.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.