Home / 123,447.20-170,355.12-66,858.08

Finding the Fourth Proportional to 123,447.20, 170,355.12 and 66,858.08

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Solution

The fourth proportional to 123,447.20, 170,355.12 and 66,858.08 is: 92,263.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,447.20 : 170,355.12 = 66,858.08 : x
  2. Step 2: Convert to fraction form
    123,447.20/170,355.12 = 66,858.08/x
  3. Step 3: Cross multiply
    123,447.20x = 170,355.12 × 66,858.08
  4. Step 4: Simplify right side
    123,447.20x = 11,389,616,241.37
  5. Step 5: Solve for x
    x = 11,389,616,241.37/123,447.20
  6. Step 6: Final answer
    x = 92,263.06

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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.