Home / 143,463.02-215,150.76-115,316.33

Finding the Fourth Proportional to 143,463.02, 215,150.76 and 115,316.33

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Solution

The fourth proportional to 143,463.02, 215,150.76 and 115,316.33 is: 172,939.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,463.02 : 215,150.76 = 115,316.33 : x
  2. Step 2: Convert to fraction form
    143,463.02/215,150.76 = 115,316.33/x
  3. Step 3: Cross multiply
    143,463.02x = 215,150.76 × 115,316.33
  4. Step 4: Simplify right side
    143,463.02x = 24,810,394,964.16
  5. Step 5: Solve for x
    x = 24,810,394,964.16/143,463.02
  6. Step 6: Final answer
    x = 172,939.31

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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.