Home / 170,018.20-255,041.55-51,690.57

Finding the Fourth Proportional to 170,018.20, 255,041.55 and 51,690.57

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Solution

The fourth proportional to 170,018.20, 255,041.55 and 51,690.57 is: 77,540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,018.20 : 255,041.55 = 51,690.57 : x
  2. Step 2: Convert to fraction form
    170,018.20/255,041.55 = 51,690.57/x
  3. Step 3: Cross multiply
    170,018.20x = 255,041.55 × 51,690.57
  4. Step 4: Simplify right side
    170,018.20x = 13,183,243,093.18
  5. Step 5: Solve for x
    x = 13,183,243,093.18/170,018.20
  6. Step 6: Final answer
    x = 77,540.19

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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.