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Finding the Fourth Proportional to 207,532.72, 286,133.16 and 135,799.12

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Solution

The fourth proportional to 207,532.72, 286,133.16 and 135,799.12 is: 187,231.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,532.72 : 286,133.16 = 135,799.12 : x
  2. Step 2: Convert to fraction form
    207,532.72/286,133.16 = 135,799.12/x
  3. Step 3: Cross multiply
    207,532.72x = 286,133.16 × 135,799.12
  4. Step 4: Simplify right side
    207,532.72x = 38,856,631,330.82
  5. Step 5: Solve for x
    x = 38,856,631,330.82/207,532.72
  6. Step 6: Final answer
    x = 187,231.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.