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Finding the Fourth Proportional to 136,749.06, 188,649 and 88,984.98

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Solution

The fourth proportional to 136,749.06, 188,649 and 88,984.98 is: 122,757.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,749.06 : 188,649 = 88,984.98 : x
  2. Step 2: Convert to fraction form
    136,749.06/188,649 = 88,984.98/x
  3. Step 3: Cross multiply
    136,749.06x = 188,649 × 88,984.98
  4. Step 4: Simplify right side
    136,749.06x = 16,786,927,492.02
  5. Step 5: Solve for x
    x = 16,786,927,492.02/136,749.06
  6. Step 6: Final answer
    x = 122,757.17

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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.