Home / 105,447.12-145,517.04-57,700.46

Finding the Fourth Proportional to 105,447.12, 145,517.04 and 57,700.46

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Solution

The fourth proportional to 105,447.12, 145,517.04 and 57,700.46 is: 79,626.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,447.12 : 145,517.04 = 57,700.46 : x
  2. Step 2: Convert to fraction form
    105,447.12/145,517.04 = 57,700.46/x
  3. Step 3: Cross multiply
    105,447.12x = 145,517.04 × 57,700.46
  4. Step 4: Simplify right side
    105,447.12x = 8,396,399,418.25
  5. Step 5: Solve for x
    x = 8,396,399,418.25/105,447.12
  6. Step 6: Final answer
    x = 79,626.64

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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.