Home / 144,582.12-199,477.86-80,909.80

Finding the Fourth Proportional to 144,582.12, 199,477.86 and 80,909.80

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Solution

The fourth proportional to 144,582.12, 199,477.86 and 80,909.80 is: 111,630.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,582.12 : 199,477.86 = 80,909.80 : x
  2. Step 2: Convert to fraction form
    144,582.12/199,477.86 = 80,909.80/x
  3. Step 3: Cross multiply
    144,582.12x = 199,477.86 × 80,909.80
  4. Step 4: Simplify right side
    144,582.12x = 16,139,713,757.03
  5. Step 5: Solve for x
    x = 16,139,713,757.03/144,582.12
  6. Step 6: Final answer
    x = 111,630.08

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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.