Home / 99,744.48-149,615.10-47,191.68

Finding the Fourth Proportional to 99,744.48, 149,615.10 and 47,191.68

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Solution

The fourth proportional to 99,744.48, 149,615.10 and 47,191.68 is: 70,786.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,744.48 : 149,615.10 = 47,191.68 : x
  2. Step 2: Convert to fraction form
    99,744.48/149,615.10 = 47,191.68/x
  3. Step 3: Cross multiply
    99,744.48x = 149,615.10 × 47,191.68
  4. Step 4: Simplify right side
    99,744.48x = 7,060,587,922.37
  5. Step 5: Solve for x
    x = 7,060,587,922.37/99,744.48
  6. Step 6: Final answer
    x = 70,786.75

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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.