Home / 170,630.28-255,835.78-70,859.34

Finding the Fourth Proportional to 170,630.28, 255,835.78 and 70,859.34

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Solution

The fourth proportional to 170,630.28, 255,835.78 and 70,859.34 is: 106,243.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,630.28 : 255,835.78 = 70,859.34 : x
  2. Step 2: Convert to fraction form
    170,630.28/255,835.78 = 70,859.34/x
  3. Step 3: Cross multiply
    170,630.28x = 255,835.78 × 70,859.34
  4. Step 4: Simplify right side
    170,630.28x = 18,128,354,519.19
  5. Step 5: Solve for x
    x = 18,128,354,519.19/170,630.28
  6. Step 6: Final answer
    x = 106,243.48

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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.