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Finding the Fourth Proportional to 108,010.80, 149,072.40 and 65,591.10

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Solution

The fourth proportional to 108,010.80, 149,072.40 and 65,591.10 is: 90,526.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,010.80 : 149,072.40 = 65,591.10 : x
  2. Step 2: Convert to fraction form
    108,010.80/149,072.40 = 65,591.10/x
  3. Step 3: Cross multiply
    108,010.80x = 149,072.40 × 65,591.10
  4. Step 4: Simplify right side
    108,010.80x = 9,777,822,695.64
  5. Step 5: Solve for x
    x = 9,777,822,695.64/108,010.80
  6. Step 6: Final answer
    x = 90,526.34

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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.