Home / 138,401.85-207,110.70-96,083.40

Finding the Fourth Proportional to 138,401.85, 207,110.70 and 96,083.40

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Solution

The fourth proportional to 138,401.85, 207,110.70 and 96,083.40 is: 143,783.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,401.85 : 207,110.70 = 96,083.40 : x
  2. Step 2: Convert to fraction form
    138,401.85/207,110.70 = 96,083.40/x
  3. Step 3: Cross multiply
    138,401.85x = 207,110.70 × 96,083.40
  4. Step 4: Simplify right side
    138,401.85x = 19,899,900,232.38
  5. Step 5: Solve for x
    x = 19,899,900,232.38/138,401.85
  6. Step 6: Final answer
    x = 143,783.48

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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.