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Finding the Fourth Proportional to 101,410.58, 139,958.34 and 61,144.94

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Solution

The fourth proportional to 101,410.58, 139,958.34 and 61,144.94 is: 84,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,410.58 : 139,958.34 = 61,144.94 : x
  2. Step 2: Convert to fraction form
    101,410.58/139,958.34 = 61,144.94/x
  3. Step 3: Cross multiply
    101,410.58x = 139,958.34 × 61,144.94
  4. Step 4: Simplify right side
    101,410.58x = 8,557,744,301.80
  5. Step 5: Solve for x
    x = 8,557,744,301.80/101,410.58
  6. Step 6: Final answer
    x = 84,387.10

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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.