Home / 157,563.78-236,309.68-45,243.11

Finding the Fourth Proportional to 157,563.78, 236,309.68 and 45,243.11

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Solution

The fourth proportional to 157,563.78, 236,309.68 and 45,243.11 is: 67,854.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,563.78 : 236,309.68 = 45,243.11 : x
  2. Step 2: Convert to fraction form
    157,563.78/236,309.68 = 45,243.11/x
  3. Step 3: Cross multiply
    157,563.78x = 236,309.68 × 45,243.11
  4. Step 4: Simplify right side
    157,563.78x = 10,691,384,037.14
  5. Step 5: Solve for x
    x = 10,691,384,037.14/157,563.78
  6. Step 6: Final answer
    x = 67,854.32

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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.