Home / 144,621.55-199,558.99-80,959.40

Finding the Fourth Proportional to 144,621.55, 199,558.99 and 80,959.40

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Solution

The fourth proportional to 144,621.55, 199,558.99 and 80,959.40 is: 111,713.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,621.55 : 199,558.99 = 80,959.40 : x
  2. Step 2: Convert to fraction form
    144,621.55/199,558.99 = 80,959.40/x
  3. Step 3: Cross multiply
    144,621.55x = 199,558.99 × 80,959.40
  4. Step 4: Simplify right side
    144,621.55x = 16,156,175,946.76
  5. Step 5: Solve for x
    x = 16,156,175,946.76/144,621.55
  6. Step 6: Final answer
    x = 111,713.47

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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.