Home / 170,872.10-256,259.73-70,908.65

Finding the Fourth Proportional to 170,872.10, 256,259.73 and 70,908.65

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Solution

The fourth proportional to 170,872.10, 256,259.73 and 70,908.65 is: 106,342.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,872.10 : 256,259.73 = 70,908.65 : x
  2. Step 2: Convert to fraction form
    170,872.10/256,259.73 = 70,908.65/x
  3. Step 3: Cross multiply
    170,872.10x = 256,259.73 × 70,908.65
  4. Step 4: Simplify right side
    170,872.10x = 18,171,031,503.66
  5. Step 5: Solve for x
    x = 18,171,031,503.66/170,872.10
  6. Step 6: Final answer
    x = 106,342.88

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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.