Home / 138,725.11-207,962.75-49,916.16

Finding the Fourth Proportional to 138,725.11, 207,962.75 and 49,916.16

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Solution

The fourth proportional to 138,725.11, 207,962.75 and 49,916.16 is: 74,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,725.11 : 207,962.75 = 49,916.16 : x
  2. Step 2: Convert to fraction form
    138,725.11/207,962.75 = 49,916.16/x
  3. Step 3: Cross multiply
    138,725.11x = 207,962.75 × 49,916.16
  4. Step 4: Simplify right side
    138,725.11x = 10,380,702,027.83
  5. Step 5: Solve for x
    x = 10,380,702,027.83/138,725.11
  6. Step 6: Final answer
    x = 74,829.30

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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.