Home / 170,721.45-256,109.79-64,113.69

Finding the Fourth Proportional to 170,721.45, 256,109.79 and 64,113.69

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Solution

The fourth proportional to 170,721.45, 256,109.79 and 64,113.69 is: 96,180.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,721.45 : 256,109.79 = 64,113.69 : x
  2. Step 2: Convert to fraction form
    170,721.45/256,109.79 = 64,113.69/x
  3. Step 3: Cross multiply
    170,721.45x = 256,109.79 × 64,113.69
  4. Step 4: Simplify right side
    170,721.45x = 16,420,143,682.03
  5. Step 5: Solve for x
    x = 16,420,143,682.03/170,721.45
  6. Step 6: Final answer
    x = 96,180.91

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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.