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Finding the Fourth Proportional to 101,808.42, 140,473.05 and 58,778.58

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Solution

The fourth proportional to 101,808.42, 140,473.05 and 58,778.58 is: 81,101.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,808.42 : 140,473.05 = 58,778.58 : x
  2. Step 2: Convert to fraction form
    101,808.42/140,473.05 = 58,778.58/x
  3. Step 3: Cross multiply
    101,808.42x = 140,473.05 × 58,778.58
  4. Step 4: Simplify right side
    101,808.42x = 8,256,806,407.27
  5. Step 5: Solve for x
    x = 8,256,806,407.27/101,808.42
  6. Step 6: Final answer
    x = 81,101.41

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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.