Home / 170,189.62-255,420.51-76,702.66

Finding the Fourth Proportional to 170,189.62, 255,420.51 and 76,702.66

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Solution

The fourth proportional to 170,189.62, 255,420.51 and 76,702.66 is: 115,115.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,189.62 : 255,420.51 = 76,702.66 : x
  2. Step 2: Convert to fraction form
    170,189.62/255,420.51 = 76,702.66/x
  3. Step 3: Cross multiply
    170,189.62x = 255,420.51 × 76,702.66
  4. Step 4: Simplify right side
    170,189.62x = 19,591,432,535.56
  5. Step 5: Solve for x
    x = 19,591,432,535.56/170,189.62
  6. Step 6: Final answer
    x = 115,115.32

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1.5x scale

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.