Home / 143,540.40-215,341.74-43,698.02

Finding the Fourth Proportional to 143,540.40, 215,341.74 and 43,698.02

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Solution

The fourth proportional to 143,540.40, 215,341.74 and 43,698.02 is: 65,556.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,540.40 : 215,341.74 = 43,698.02 : x
  2. Step 2: Convert to fraction form
    143,540.40/215,341.74 = 43,698.02/x
  3. Step 3: Cross multiply
    143,540.40x = 215,341.74 × 43,698.02
  4. Step 4: Simplify right side
    143,540.40x = 9,410,006,584.65
  5. Step 5: Solve for x
    x = 9,410,006,584.65/143,540.40
  6. Step 6: Final answer
    x = 65,556.50

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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.