Home / 99,682.72-149,309.68-47,013.28

Finding the Fourth Proportional to 99,682.72, 149,309.68 and 47,013.28

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Solution

The fourth proportional to 99,682.72, 149,309.68 and 47,013.28 is: 70,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,682.72 : 149,309.68 = 47,013.28 : x
  2. Step 2: Convert to fraction form
    99,682.72/149,309.68 = 47,013.28/x
  3. Step 3: Cross multiply
    99,682.72x = 149,309.68 × 47,013.28
  4. Step 4: Simplify right side
    99,682.72x = 7,019,537,792.55
  5. Step 5: Solve for x
    x = 7,019,537,792.55/99,682.72
  6. Step 6: Final answer
    x = 70,418.80

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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.