Home / 170,148.62-255,359.01-76,661.66

Finding the Fourth Proportional to 170,148.62, 255,359.01 and 76,661.66

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Solution

The fourth proportional to 170,148.62, 255,359.01 and 76,661.66 is: 115,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,148.62 : 255,359.01 = 76,661.66 : x
  2. Step 2: Convert to fraction form
    170,148.62/255,359.01 = 76,661.66/x
  3. Step 3: Cross multiply
    170,148.62x = 255,359.01 × 76,661.66
  4. Step 4: Simplify right side
    170,148.62x = 19,576,245,602.56
  5. Step 5: Solve for x
    x = 19,576,245,602.56/170,148.62
  6. Step 6: Final answer
    x = 115,053.80

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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.