Home / 138,157.24-207,185.10-49,386.64

Finding the Fourth Proportional to 138,157.24, 207,185.10 and 49,386.64

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Solution

The fourth proportional to 138,157.24, 207,185.10 and 49,386.64 is: 74,061.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,157.24 : 207,185.10 = 49,386.64 : x
  2. Step 2: Convert to fraction form
    138,157.24/207,185.10 = 49,386.64/x
  3. Step 3: Cross multiply
    138,157.24x = 207,185.10 × 49,386.64
  4. Step 4: Simplify right side
    138,157.24x = 10,232,175,947.06
  5. Step 5: Solve for x
    x = 10,232,175,947.06/138,157.24
  6. Step 6: Final answer
    x = 74,061.81

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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.