Home / 135,663.25-187,215.30-75,243.13

Finding the Fourth Proportional to 135,663.25, 187,215.30 and 75,243.13

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Solution

The fourth proportional to 135,663.25, 187,215.30 and 75,243.13 is: 103,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,663.25 : 187,215.30 = 75,243.13 : x
  2. Step 2: Convert to fraction form
    135,663.25/187,215.30 = 75,243.13/x
  3. Step 3: Cross multiply
    135,663.25x = 187,215.30 × 75,243.13
  4. Step 4: Simplify right side
    135,663.25x = 14,086,665,155.89
  5. Step 5: Solve for x
    x = 14,086,665,155.89/135,663.25
  6. Step 6: Final answer
    x = 103,835.53

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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.