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Finding the Fourth Proportional to 101,294.22, 139,813.14 and 58,278.60

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Solution

The fourth proportional to 101,294.22, 139,813.14 and 58,278.60 is: 80,440.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,294.22 : 139,813.14 = 58,278.60 : x
  2. Step 2: Convert to fraction form
    101,294.22/139,813.14 = 58,278.60/x
  3. Step 3: Cross multiply
    101,294.22x = 139,813.14 × 58,278.60
  4. Step 4: Simplify right side
    101,294.22x = 8,148,114,060.80
  5. Step 5: Solve for x
    x = 8,148,114,060.80/101,294.22
  6. Step 6: Final answer
    x = 80,440.07

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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.