Home / 105,712.38-145,959.62-68,052.24

Finding the Fourth Proportional to 105,712.38, 145,959.62 and 68,052.24

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Solution

The fourth proportional to 105,712.38, 145,959.62 and 68,052.24 is: 93,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,712.38 : 145,959.62 = 68,052.24 : x
  2. Step 2: Convert to fraction form
    105,712.38/145,959.62 = 68,052.24/x
  3. Step 3: Cross multiply
    105,712.38x = 145,959.62 × 68,052.24
  4. Step 4: Simplify right side
    105,712.38x = 9,932,879,090.55
  5. Step 5: Solve for x
    x = 9,932,879,090.55/105,712.38
  6. Step 6: Final answer
    x = 93,961.36

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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.