Home / 170,912.43-235,823.13-99,255.51

Finding the Fourth Proportional to 170,912.43, 235,823.13 and 99,255.51

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Solution

The fourth proportional to 170,912.43, 235,823.13 and 99,255.51 is: 136,951.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,912.43 : 235,823.13 = 99,255.51 : x
  2. Step 2: Convert to fraction form
    170,912.43/235,823.13 = 99,255.51/x
  3. Step 3: Cross multiply
    170,912.43x = 235,823.13 × 99,255.51
  4. Step 4: Simplify right side
    170,912.43x = 23,406,745,037.95
  5. Step 5: Solve for x
    x = 23,406,745,037.95/170,912.43
  6. Step 6: Final answer
    x = 136,951.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.