Home / 103,589.08-142,965.56-58,268.97

Finding the Fourth Proportional to 103,589.08, 142,965.56 and 58,268.97

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Solution

The fourth proportional to 103,589.08, 142,965.56 and 58,268.97 is: 80,418.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,589.08 : 142,965.56 = 58,268.97 : x
  2. Step 2: Convert to fraction form
    103,589.08/142,965.56 = 58,268.97/x
  3. Step 3: Cross multiply
    103,589.08x = 142,965.56 × 58,268.97
  4. Step 4: Simplify right side
    103,589.08x = 8,330,455,744.58
  5. Step 5: Solve for x
    x = 8,330,455,744.58/103,589.08
  6. Step 6: Final answer
    x = 80,418.28

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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.