Home / 170,257.95-255,299.45-91,438.47

Finding the Fourth Proportional to 170,257.95, 255,299.45 and 91,438.47

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Solution

The fourth proportional to 170,257.95, 255,299.45 and 91,438.47 is: 137,110.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,257.95 : 255,299.45 = 91,438.47 : x
  2. Step 2: Convert to fraction form
    170,257.95/255,299.45 = 91,438.47/x
  3. Step 3: Cross multiply
    170,257.95x = 255,299.45 × 91,438.47
  4. Step 4: Simplify right side
    170,257.95x = 23,344,190,642.65
  5. Step 5: Solve for x
    x = 23,344,190,642.65/170,257.95
  6. Step 6: Final answer
    x = 137,110.72

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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.