Home / 199,145.20-274,807.56-118,578.64

Finding the Fourth Proportional to 199,145.20, 274,807.56 and 118,578.64

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Solution

The fourth proportional to 199,145.20, 274,807.56 and 118,578.64 is: 163,630.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,145.20 : 274,807.56 = 118,578.64 : x
  2. Step 2: Convert to fraction form
    199,145.20/274,807.56 = 118,578.64/x
  3. Step 3: Cross multiply
    199,145.20x = 274,807.56 × 118,578.64
  4. Step 4: Simplify right side
    199,145.20x = 32,586,306,726.52
  5. Step 5: Solve for x
    x = 32,586,306,726.52/199,145.20
  6. Step 6: Final answer
    x = 163,630.89

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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.