Home / 144,341.03-199,184.34-78,928.65

Finding the Fourth Proportional to 144,341.03, 199,184.34 and 78,928.65

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Solution

The fourth proportional to 144,341.03, 199,184.34 and 78,928.65 is: 108,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,341.03 : 199,184.34 = 78,928.65 : x
  2. Step 2: Convert to fraction form
    144,341.03/199,184.34 = 78,928.65/x
  3. Step 3: Cross multiply
    144,341.03x = 199,184.34 × 78,928.65
  4. Step 4: Simplify right side
    144,341.03x = 15,721,351,057.34
  5. Step 5: Solve for x
    x = 15,721,351,057.34/144,341.03
  6. Step 6: Final answer
    x = 108,918.10

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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.