Home / 144,206.90-199,009.54-79,680.30

Finding the Fourth Proportional to 144,206.90, 199,009.54 and 79,680.30

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Solution

The fourth proportional to 144,206.90, 199,009.54 and 79,680.30 is: 109,961.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,206.90 : 199,009.54 = 79,680.30 : x
  2. Step 2: Convert to fraction form
    144,206.90/199,009.54 = 79,680.30/x
  3. Step 3: Cross multiply
    144,206.90x = 199,009.54 × 79,680.30
  4. Step 4: Simplify right side
    144,206.90x = 15,857,139,352.54
  5. Step 5: Solve for x
    x = 15,857,139,352.54/144,206.90
  6. Step 6: Final answer
    x = 109,961.03

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1.5x scale

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.