Home / 170,905.14-255,859.56-99,609.75

Finding the Fourth Proportional to 170,905.14, 255,859.56 and 99,609.75

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Solution

The fourth proportional to 170,905.14, 255,859.56 and 99,609.75 is: 149,124.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,905.14 : 255,859.56 = 99,609.75 : x
  2. Step 2: Convert to fraction form
    170,905.14/255,859.56 = 99,609.75/x
  3. Step 3: Cross multiply
    170,905.14x = 255,859.56 × 99,609.75
  4. Step 4: Simplify right side
    170,905.14x = 25,486,106,806.71
  5. Step 5: Solve for x
    x = 25,486,106,806.71/170,905.14
  6. Step 6: Final answer
    x = 149,124.29

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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.