Home / 105,543.82-145,652.16-57,796.33

Finding the Fourth Proportional to 105,543.82, 145,652.16 and 57,796.33

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Solution

The fourth proportional to 105,543.82, 145,652.16 and 57,796.33 is: 79,759.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,543.82 : 145,652.16 = 57,796.33 : x
  2. Step 2: Convert to fraction form
    105,543.82/145,652.16 = 57,796.33/x
  3. Step 3: Cross multiply
    105,543.82x = 145,652.16 × 57,796.33
  4. Step 4: Simplify right side
    105,543.82x = 8,418,160,304.57
  5. Step 5: Solve for x
    x = 8,418,160,304.57/105,543.82
  6. Step 6: Final answer
    x = 79,759.86

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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.