Home / 138,385.10-207,614.10-49,629.35

Finding the Fourth Proportional to 138,385.10, 207,614.10 and 49,629.35

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Solution

The fourth proportional to 138,385.10, 207,614.10 and 49,629.35 is: 74,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,385.10 : 207,614.10 = 49,629.35 : x
  2. Step 2: Convert to fraction form
    138,385.10/207,614.10 = 49,629.35/x
  3. Step 3: Cross multiply
    138,385.10x = 207,614.10 × 49,629.35
  4. Step 4: Simplify right side
    138,385.10x = 10,303,752,833.84
  5. Step 5: Solve for x
    x = 10,303,752,833.84/138,385.10
  6. Step 6: Final answer
    x = 74,457.10

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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.