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Finding the Fourth Proportional to 104,809.80, 157,279.50 and 42,480.84

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Solution

The fourth proportional to 104,809.80, 157,279.50 and 42,480.84 is: 63,747.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,809.80 : 157,279.50 = 42,480.84 : x
  2. Step 2: Convert to fraction form
    104,809.80/157,279.50 = 42,480.84/x
  3. Step 3: Cross multiply
    104,809.80x = 157,279.50 × 42,480.84
  4. Step 4: Simplify right side
    104,809.80x = 6,681,365,274.78
  5. Step 5: Solve for x
    x = 6,681,365,274.78/104,809.80
  6. Step 6: Final answer
    x = 63,747.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.