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Finding the Fourth Proportional to 136,097.46, 187,749.06 and 88,365.78

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Solution

The fourth proportional to 136,097.46, 187,749.06 and 88,365.78 is: 121,902.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,097.46 : 187,749.06 = 88,365.78 : x
  2. Step 2: Convert to fraction form
    136,097.46/187,749.06 = 88,365.78/x
  3. Step 3: Cross multiply
    136,097.46x = 187,749.06 × 88,365.78
  4. Step 4: Simplify right side
    136,097.46x = 16,590,592,131.17
  5. Step 5: Solve for x
    x = 16,590,592,131.17/136,097.46
  6. Step 6: Final answer
    x = 121,902.29

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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.