Home / 138,388.10-207,618.60-49,632.35

Finding the Fourth Proportional to 138,388.10, 207,618.60 and 49,632.35

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Solution

The fourth proportional to 138,388.10, 207,618.60 and 49,632.35 is: 74,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,388.10 : 207,618.60 = 49,632.35 : x
  2. Step 2: Convert to fraction form
    138,388.10/207,618.60 = 49,632.35/x
  3. Step 3: Cross multiply
    138,388.10x = 207,618.60 × 49,632.35
  4. Step 4: Simplify right side
    138,388.10x = 10,304,599,021.71
  5. Step 5: Solve for x
    x = 10,304,599,021.71/138,388.10
  6. Step 6: Final answer
    x = 74,461.60

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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.