Home / 105,293.10-145,304.22-57,546.79

Finding the Fourth Proportional to 105,293.10, 145,304.22 and 57,546.79

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Solution

The fourth proportional to 105,293.10, 145,304.22 and 57,546.79 is: 79,414.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,293.10 : 145,304.22 = 57,546.79 : x
  2. Step 2: Convert to fraction form
    105,293.10/145,304.22 = 57,546.79/x
  3. Step 3: Cross multiply
    105,293.10x = 145,304.22 × 57,546.79
  4. Step 4: Simplify right side
    105,293.10x = 8,361,791,125.14
  5. Step 5: Solve for x
    x = 8,361,791,125.14/105,293.10
  6. Step 6: Final answer
    x = 79,414.43

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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.