Home / 213,909.75-295,395.48-137,561.43

Finding the Fourth Proportional to 213,909.75, 295,395.48 and 137,561.43

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Solution

The fourth proportional to 213,909.75, 295,395.48 and 137,561.43 is: 189,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,909.75 : 295,395.48 = 137,561.43 : x
  2. Step 2: Convert to fraction form
    213,909.75/295,395.48 = 137,561.43/x
  3. Step 3: Cross multiply
    213,909.75x = 295,395.48 × 137,561.43
  4. Step 4: Simplify right side
    213,909.75x = 40,635,023,167.36
  5. Step 5: Solve for x
    x = 40,635,023,167.36/213,909.75
  6. Step 6: Final answer
    x = 189,963.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.