Home / 123,905.02-170,997.38-70,190.47

Finding the Fourth Proportional to 123,905.02, 170,997.38 and 70,190.47

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Solution

The fourth proportional to 123,905.02, 170,997.38 and 70,190.47 is: 96,867.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,905.02 : 170,997.38 = 70,190.47 : x
  2. Step 2: Convert to fraction form
    123,905.02/170,997.38 = 70,190.47/x
  3. Step 3: Cross multiply
    123,905.02x = 170,997.38 × 70,190.47
  4. Step 4: Simplify right side
    123,905.02x = 12,002,386,470.97
  5. Step 5: Solve for x
    x = 12,002,386,470.97/123,905.02
  6. Step 6: Final answer
    x = 96,867.64

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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.