Home / 99,401.29-149,101.21-40,236.12

Finding the Fourth Proportional to 99,401.29, 149,101.21 and 40,236.12

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Solution

The fourth proportional to 99,401.29, 149,101.21 and 40,236.12 is: 60,353.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,401.29 : 149,101.21 = 40,236.12 : x
  2. Step 2: Convert to fraction form
    99,401.29/149,101.21 = 40,236.12/x
  3. Step 3: Cross multiply
    99,401.29x = 149,101.21 × 40,236.12
  4. Step 4: Simplify right side
    99,401.29x = 5,999,254,177.71
  5. Step 5: Solve for x
    x = 5,999,254,177.71/99,401.29
  6. Step 6: Final answer
    x = 60,353.89

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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.