Home / 170,870.10-256,256.73-70,906.65

Finding the Fourth Proportional to 170,870.10, 256,256.73 and 70,906.65

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Solution

The fourth proportional to 170,870.10, 256,256.73 and 70,906.65 is: 106,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,870.10 : 256,256.73 = 70,906.65 : x
  2. Step 2: Convert to fraction form
    170,870.10/256,256.73 = 70,906.65/x
  3. Step 3: Cross multiply
    170,870.10x = 256,256.73 × 70,906.65
  4. Step 4: Simplify right side
    170,870.10x = 18,170,306,264.25
  5. Step 5: Solve for x
    x = 18,170,306,264.25/170,870.10
  6. Step 6: Final answer
    x = 106,339.88

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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.