Home / 105,680.88-145,840.77-57,933.18

Finding the Fourth Proportional to 105,680.88, 145,840.77 and 57,933.18

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Solution

The fourth proportional to 105,680.88, 145,840.77 and 57,933.18 is: 79,948.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,680.88 : 145,840.77 = 57,933.18 : x
  2. Step 2: Convert to fraction form
    105,680.88/145,840.77 = 57,933.18/x
  3. Step 3: Cross multiply
    105,680.88x = 145,840.77 × 57,933.18
  4. Step 4: Simplify right side
    105,680.88x = 8,449,019,579.75
  5. Step 5: Solve for x
    x = 8,449,019,579.75/105,680.88
  6. Step 6: Final answer
    x = 79,948.42

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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.