Home / 196,780.68-295,113.33-90,104.31

Finding the Fourth Proportional to 196,780.68, 295,113.33 and 90,104.31

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Solution

The fourth proportional to 196,780.68, 295,113.33 and 90,104.31 is: 135,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,780.68 : 295,113.33 = 90,104.31 : x
  2. Step 2: Convert to fraction form
    196,780.68/295,113.33 = 90,104.31/x
  3. Step 3: Cross multiply
    196,780.68x = 295,113.33 × 90,104.31
  4. Step 4: Simplify right side
    196,780.68x = 26,590,982,971.45
  5. Step 5: Solve for x
    x = 26,590,982,971.45/196,780.68
  6. Step 6: Final answer
    x = 135,130.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.