Home / 144,339.90-199,182.79-78,927.53

Finding the Fourth Proportional to 144,339.90, 199,182.79 and 78,927.53

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Solution

The fourth proportional to 144,339.90, 199,182.79 and 78,927.53 is: 108,916.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,339.90 : 199,182.79 = 78,927.53 : x
  2. Step 2: Convert to fraction form
    144,339.90/199,182.79 = 78,927.53/x
  3. Step 3: Cross multiply
    144,339.90x = 199,182.79 × 78,927.53
  4. Step 4: Simplify right side
    144,339.90x = 15,721,004,439.98
  5. Step 5: Solve for x
    x = 15,721,004,439.98/144,339.90
  6. Step 6: Final answer
    x = 108,916.55

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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.