Home / 147,849.10-204,031.75-80,781.10

Finding the Fourth Proportional to 147,849.10, 204,031.75 and 80,781.10

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Solution

The fourth proportional to 147,849.10, 204,031.75 and 80,781.10 is: 111,477.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,849.10 : 204,031.75 = 80,781.10 : x
  2. Step 2: Convert to fraction form
    147,849.10/204,031.75 = 80,781.10/x
  3. Step 3: Cross multiply
    147,849.10x = 204,031.75 × 80,781.10
  4. Step 4: Simplify right side
    147,849.10x = 16,481,909,199.93
  5. Step 5: Solve for x
    x = 16,481,909,199.93/147,849.10
  6. Step 6: Final answer
    x = 111,477.91

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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.