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Finding the Fourth Proportional to 123,482.70, 170,405.67 and 69,767.67

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Solution

The fourth proportional to 123,482.70, 170,405.67 and 69,767.67 is: 96,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,482.70 : 170,405.67 = 69,767.67 : x
  2. Step 2: Convert to fraction form
    123,482.70/170,405.67 = 69,767.67/x
  3. Step 3: Cross multiply
    123,482.70x = 170,405.67 × 69,767.67
  4. Step 4: Simplify right side
    123,482.70x = 11,888,806,550.69
  5. Step 5: Solve for x
    x = 11,888,806,550.69/123,482.70
  6. Step 6: Final answer
    x = 96,279.13

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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.