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Finding the Fourth Proportional to 101,209.58, 138,656.48 and 97,424.70

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Solution

The fourth proportional to 101,209.58, 138,656.48 and 97,424.70 is: 133,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,209.58 : 138,656.48 = 97,424.70 : x
  2. Step 2: Convert to fraction form
    101,209.58/138,656.48 = 97,424.70/x
  3. Step 3: Cross multiply
    101,209.58x = 138,656.48 × 97,424.70
  4. Step 4: Simplify right side
    101,209.58x = 13,508,566,171.96
  5. Step 5: Solve for x
    x = 13,508,566,171.96/101,209.58
  6. Step 6: Final answer
    x = 133,471.23

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.