Home / 170,639.30-255,849.59-70,868.36

Finding the Fourth Proportional to 170,639.30, 255,849.59 and 70,868.36

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Solution

The fourth proportional to 170,639.30, 255,849.59 and 70,868.36 is: 106,257.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,639.30 : 255,849.59 = 70,868.36 : x
  2. Step 2: Convert to fraction form
    170,639.30/255,849.59 = 70,868.36/x
  3. Step 3: Cross multiply
    170,639.30x = 255,849.59 × 70,868.36
  4. Step 4: Simplify right side
    170,639.30x = 18,131,639,570.72
  5. Step 5: Solve for x
    x = 18,131,639,570.72/170,639.30
  6. Step 6: Final answer
    x = 106,257.12

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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.