Home / 123,447.03-170,357.23-66,858.40

Finding the Fourth Proportional to 123,447.03, 170,357.23 and 66,858.40

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Solution

The fourth proportional to 123,447.03, 170,357.23 and 66,858.40 is: 92,264.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,447.03 : 170,357.23 = 66,858.40 : x
  2. Step 2: Convert to fraction form
    123,447.03/170,357.23 = 66,858.40/x
  3. Step 3: Cross multiply
    123,447.03x = 170,357.23 × 66,858.40
  4. Step 4: Simplify right side
    123,447.03x = 11,389,812,122.75
  5. Step 5: Solve for x
    x = 11,389,812,122.75/123,447.03
  6. Step 6: Final answer
    x = 92,264.78

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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.