Home / 231,534.06-319,415.56-135,997.66

Finding the Fourth Proportional to 231,534.06, 319,415.56 and 135,997.66

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Solution

The fourth proportional to 231,534.06, 319,415.56 and 135,997.66 is: 187,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,534.06 : 319,415.56 = 135,997.66 : x
  2. Step 2: Convert to fraction form
    231,534.06/319,415.56 = 135,997.66/x
  3. Step 3: Cross multiply
    231,534.06x = 319,415.56 × 135,997.66
  4. Step 4: Simplify right side
    231,534.06x = 43,439,768,727.59
  5. Step 5: Solve for x
    x = 43,439,768,727.59/231,534.06
  6. Step 6: Final answer
    x = 187,617.19

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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.