Home / 170,869.10-256,255.23-70,905.65

Finding the Fourth Proportional to 170,869.10, 256,255.23 and 70,905.65

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Solution

The fourth proportional to 170,869.10, 256,255.23 and 70,905.65 is: 106,338.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,869.10 : 256,255.23 = 70,905.65 : x
  2. Step 2: Convert to fraction form
    170,869.10/256,255.23 = 70,905.65/x
  3. Step 3: Cross multiply
    170,869.10x = 256,255.23 × 70,905.65
  4. Step 4: Simplify right side
    170,869.10x = 18,169,943,649.05
  5. Step 5: Solve for x
    x = 18,169,943,649.05/170,869.10
  6. Step 6: Final answer
    x = 106,338.38

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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.