Home / 144,750.86-199,756.04-81,089.11

Finding the Fourth Proportional to 144,750.86, 199,756.04 and 81,089.11

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Solution

The fourth proportional to 144,750.86, 199,756.04 and 81,089.11 is: 111,902.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,750.86 : 199,756.04 = 81,089.11 : x
  2. Step 2: Convert to fraction form
    144,750.86/199,756.04 = 81,089.11/x
  3. Step 3: Cross multiply
    144,750.86x = 199,756.04 × 81,089.11
  4. Step 4: Simplify right side
    144,750.86x = 16,198,039,204.06
  5. Step 5: Solve for x
    x = 16,198,039,204.06/144,750.86
  6. Step 6: Final answer
    x = 111,902.89

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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.