Home / 153,321.12-228,815.85-143,169.03

Finding the Fourth Proportional to 153,321.12, 228,815.85 and 143,169.03

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Solution

The fourth proportional to 153,321.12, 228,815.85 and 143,169.03 is: 213,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,321.12 : 228,815.85 = 143,169.03 : x
  2. Step 2: Convert to fraction form
    153,321.12/228,815.85 = 143,169.03/x
  3. Step 3: Cross multiply
    153,321.12x = 228,815.85 × 143,169.03
  4. Step 4: Simplify right side
    153,321.12x = 32,759,343,293.13
  5. Step 5: Solve for x
    x = 32,759,343,293.13/153,321.12
  6. Step 6: Final answer
    x = 213,664.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.