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Finding the Fourth Proportional to 123,574.68, 170,534.16 and 66,986.04

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Solution

The fourth proportional to 123,574.68, 170,534.16 and 66,986.04 is: 92,441.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,574.68 : 170,534.16 = 66,986.04 : x
  2. Step 2: Convert to fraction form
    123,574.68/170,534.16 = 66,986.04/x
  3. Step 3: Cross multiply
    123,574.68x = 170,534.16 × 66,986.04
  4. Step 4: Simplify right side
    123,574.68x = 11,423,408,063.13
  5. Step 5: Solve for x
    x = 11,423,408,063.13/123,574.68
  6. Step 6: Final answer
    x = 92,441.33

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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.