Home / 170,134.78-255,240.90-51,815.35

Finding the Fourth Proportional to 170,134.78, 255,240.90 and 51,815.35

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Solution

The fourth proportional to 170,134.78, 255,240.90 and 51,815.35 is: 77,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,134.78 : 255,240.90 = 51,815.35 : x
  2. Step 2: Convert to fraction form
    170,134.78/255,240.90 = 51,815.35/x
  3. Step 3: Cross multiply
    170,134.78x = 255,240.90 × 51,815.35
  4. Step 4: Simplify right side
    170,134.78x = 13,225,396,567.82
  5. Step 5: Solve for x
    x = 13,225,396,567.82/170,134.78
  6. Step 6: Final answer
    x = 77,734.82

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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.