Home / 107,185.92-147,967.36-71,435.52

Finding the Fourth Proportional to 107,185.92, 147,967.36 and 71,435.52

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Solution

The fourth proportional to 107,185.92, 147,967.36 and 71,435.52 is: 98,614.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,185.92 : 147,967.36 = 71,435.52 : x
  2. Step 2: Convert to fraction form
    107,185.92/147,967.36 = 71,435.52/x
  3. Step 3: Cross multiply
    107,185.92x = 147,967.36 × 71,435.52
  4. Step 4: Simplify right side
    107,185.92x = 10,570,125,304.63
  5. Step 5: Solve for x
    x = 10,570,125,304.63/107,185.92
  6. Step 6: Final answer
    x = 98,614.87

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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.