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Finding the Fourth Proportional to 100,697.77, 138,952.15 and 58,248.37

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Solution

The fourth proportional to 100,697.77, 138,952.15 and 58,248.37 is: 80,376.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,697.77 : 138,952.15 = 58,248.37 : x
  2. Step 2: Convert to fraction form
    100,697.77/138,952.15 = 58,248.37/x
  3. Step 3: Cross multiply
    100,697.77x = 138,952.15 × 58,248.37
  4. Step 4: Simplify right side
    100,697.77x = 8,093,736,245.50
  5. Step 5: Solve for x
    x = 8,093,736,245.50/100,697.77
  6. Step 6: Final answer
    x = 80,376.52

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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.