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Finding the Fourth Proportional to 97,656, 134,749.08 and 61,351.80

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Solution

The fourth proportional to 97,656, 134,749.08 and 61,351.80 is: 84,655.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,656 : 134,749.08 = 61,351.80 : x
  2. Step 2: Convert to fraction form
    97,656/134,749.08 = 61,351.80/x
  3. Step 3: Cross multiply
    97,656x = 134,749.08 × 61,351.80
  4. Step 4: Simplify right side
    97,656x = 8,267,098,606.34
  5. Step 5: Solve for x
    x = 8,267,098,606.34/97,656
  6. Step 6: Final answer
    x = 84,655.31

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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.