Home / 138,605.19-207,908.46-38,774.10

Finding the Fourth Proportional to 138,605.19, 207,908.46 and 38,774.10

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Solution

The fourth proportional to 138,605.19, 207,908.46 and 38,774.10 is: 58,161.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,605.19 : 207,908.46 = 38,774.10 : x
  2. Step 2: Convert to fraction form
    138,605.19/207,908.46 = 38,774.10/x
  3. Step 3: Cross multiply
    138,605.19x = 207,908.46 × 38,774.10
  4. Step 4: Simplify right side
    138,605.19x = 8,061,463,418.89
  5. Step 5: Solve for x
    x = 8,061,463,418.89/138,605.19
  6. Step 6: Final answer
    x = 58,161.34

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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.