Home / 199,432.13-299,150.79-66,312.38

Finding the Fourth Proportional to 199,432.13, 299,150.79 and 66,312.38

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Solution

The fourth proportional to 199,432.13, 299,150.79 and 66,312.38 is: 99,469.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,432.13 : 299,150.79 = 66,312.38 : x
  2. Step 2: Convert to fraction form
    199,432.13/299,150.79 = 66,312.38/x
  3. Step 3: Cross multiply
    199,432.13x = 299,150.79 × 66,312.38
  4. Step 4: Simplify right side
    199,432.13x = 19,837,401,735.99
  5. Step 5: Solve for x
    x = 19,837,401,735.99/199,432.13
  6. Step 6: Final answer
    x = 99,469.44

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1.5x scale

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.