Home / 99,747.48-149,619.60-47,194.68

Finding the Fourth Proportional to 99,747.48, 149,619.60 and 47,194.68

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Solution

The fourth proportional to 99,747.48, 149,619.60 and 47,194.68 is: 70,791.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,747.48 : 149,619.60 = 47,194.68 : x
  2. Step 2: Convert to fraction form
    99,747.48/149,619.60 = 47,194.68/x
  3. Step 3: Cross multiply
    99,747.48x = 149,619.60 × 47,194.68
  4. Step 4: Simplify right side
    99,747.48x = 7,061,249,143.73
  5. Step 5: Solve for x
    x = 7,061,249,143.73/99,747.48
  6. Step 6: Final answer
    x = 70,791.25

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Why These Related Problems?

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