Home / 138,426.26-207,643.88-43,657.36

Finding the Fourth Proportional to 138,426.26, 207,643.88 and 43,657.36

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Solution

The fourth proportional to 138,426.26, 207,643.88 and 43,657.36 is: 65,487.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,426.26 : 207,643.88 = 43,657.36 : x
  2. Step 2: Convert to fraction form
    138,426.26/207,643.88 = 43,657.36/x
  3. Step 3: Cross multiply
    138,426.26x = 207,643.88 × 43,657.36
  4. Step 4: Simplify right side
    138,426.26x = 9,065,183,620.96
  5. Step 5: Solve for x
    x = 9,065,183,620.96/138,426.26
  6. Step 6: Final answer
    x = 65,487.46

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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.