Home / 170,357.31-255,694.19-86,176.98

Finding the Fourth Proportional to 170,357.31, 255,694.19 and 86,176.98

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Solution

The fourth proportional to 170,357.31, 255,694.19 and 86,176.98 is: 129,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,357.31 : 255,694.19 = 86,176.98 : x
  2. Step 2: Convert to fraction form
    170,357.31/255,694.19 = 86,176.98/x
  3. Step 3: Cross multiply
    170,357.31x = 255,694.19 × 86,176.98
  4. Step 4: Simplify right side
    170,357.31x = 22,034,952,666.86
  5. Step 5: Solve for x
    x = 22,034,952,666.86/170,357.31
  6. Step 6: Final answer
    x = 129,345.51

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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.