Home / 157,371.45-217,172.61-85,751.49

Finding the Fourth Proportional to 157,371.45, 217,172.61 and 85,751.49

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Solution

The fourth proportional to 157,371.45, 217,172.61 and 85,751.49 is: 118,337.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,371.45 : 217,172.61 = 85,751.49 : x
  2. Step 2: Convert to fraction form
    157,371.45/217,172.61 = 85,751.49/x
  3. Step 3: Cross multiply
    157,371.45x = 217,172.61 × 85,751.49
  4. Step 4: Simplify right side
    157,371.45x = 18,622,874,894.69
  5. Step 5: Solve for x
    x = 18,622,874,894.69/157,371.45
  6. Step 6: Final answer
    x = 118,337.06

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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.