Home / 213,909.12-295,394.61-137,560.80

Finding the Fourth Proportional to 213,909.12, 295,394.61 and 137,560.80

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Solution

The fourth proportional to 213,909.12, 295,394.61 and 137,560.80 is: 189,962.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,909.12 : 295,394.61 = 137,560.80 : x
  2. Step 2: Convert to fraction form
    213,909.12/295,394.61 = 137,560.80/x
  3. Step 3: Cross multiply
    213,909.12x = 295,394.61 × 137,560.80
  4. Step 4: Simplify right side
    213,909.12x = 40,634,718,867.29
  5. Step 5: Solve for x
    x = 40,634,718,867.29/213,909.12
  6. Step 6: Final answer
    x = 189,962.54

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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.