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Finding the Fourth Proportional to 144,339.53, 199,182.27 and 78,927.15

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Solution

The fourth proportional to 144,339.53, 199,182.27 and 78,927.15 is: 108,916.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,339.53 : 199,182.27 = 78,927.15 : x
  2. Step 2: Convert to fraction form
    144,339.53/199,182.27 = 78,927.15/x
  3. Step 3: Cross multiply
    144,339.53x = 199,182.27 × 78,927.15
  4. Step 4: Simplify right side
    144,339.53x = 15,720,888,901.63
  5. Step 5: Solve for x
    x = 15,720,888,901.63/144,339.53
  6. Step 6: Final answer
    x = 108,916.04

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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.