Home / 99,540.34-149,237.31-46,921.30

Finding the Fourth Proportional to 99,540.34, 149,237.31 and 46,921.30

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Solution

The fourth proportional to 99,540.34, 149,237.31 and 46,921.30 is: 70,347.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,540.34 : 149,237.31 = 46,921.30 : x
  2. Step 2: Convert to fraction form
    99,540.34/149,237.31 = 46,921.30/x
  3. Step 3: Cross multiply
    99,540.34x = 149,237.31 × 46,921.30
  4. Step 4: Simplify right side
    99,540.34x = 7,002,408,593.70
  5. Step 5: Solve for x
    x = 7,002,408,593.70/99,540.34
  6. Step 6: Final answer
    x = 70,347.45

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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.