Home / 199,559.07-299,179.65-115,223.57

Finding the Fourth Proportional to 199,559.07, 299,179.65 and 115,223.57

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Solution

The fourth proportional to 199,559.07, 299,179.65 and 115,223.57 is: 172,743.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,559.07 : 299,179.65 = 115,223.57 : x
  2. Step 2: Convert to fraction form
    199,559.07/299,179.65 = 115,223.57/x
  3. Step 3: Cross multiply
    199,559.07x = 299,179.65 × 115,223.57
  4. Step 4: Simplify right side
    199,559.07x = 34,472,545,848.45
  5. Step 5: Solve for x
    x = 34,472,545,848.45/199,559.07
  6. Step 6: Final answer
    x = 172,743.57

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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.