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Finding the Fourth Proportional to 131,214.64, 180,866.64 and 88,699.36

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Solution

The fourth proportional to 131,214.64, 180,866.64 and 88,699.36 is: 122,263.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,214.64 : 180,866.64 = 88,699.36 : x
  2. Step 2: Convert to fraction form
    131,214.64/180,866.64 = 88,699.36/x
  3. Step 3: Cross multiply
    131,214.64x = 180,866.64 × 88,699.36
  4. Step 4: Simplify right side
    131,214.64x = 16,042,755,213.35
  5. Step 5: Solve for x
    x = 16,042,755,213.35/131,214.64
  6. Step 6: Final answer
    x = 122,263.45

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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.