Home / 144,719.91-199,702.35-81,049.05

Finding the Fourth Proportional to 144,719.91, 199,702.35 and 81,049.05

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Solution

The fourth proportional to 144,719.91, 199,702.35 and 81,049.05 is: 111,841.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,719.91 : 199,702.35 = 81,049.05 : x
  2. Step 2: Convert to fraction form
    144,719.91/199,702.35 = 81,049.05/x
  3. Step 3: Cross multiply
    144,719.91x = 199,702.35 × 81,049.05
  4. Step 4: Simplify right side
    144,719.91x = 16,185,685,750.27
  5. Step 5: Solve for x
    x = 16,185,685,750.27/144,719.91
  6. Step 6: Final answer
    x = 111,841.46

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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.