Home / 170,712.51-256,183.06-70,872.79

Finding the Fourth Proportional to 170,712.51, 256,183.06 and 70,872.79

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Solution

The fourth proportional to 170,712.51, 256,183.06 and 70,872.79 is: 106,356.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,712.51 : 256,183.06 = 70,872.79 : x
  2. Step 2: Convert to fraction form
    170,712.51/256,183.06 = 70,872.79/x
  3. Step 3: Cross multiply
    170,712.51x = 256,183.06 × 70,872.79
  4. Step 4: Simplify right side
    170,712.51x = 18,156,408,212.94
  5. Step 5: Solve for x
    x = 18,156,408,212.94/170,712.51
  6. Step 6: Final answer
    x = 106,356.64

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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.