Home / 157,315.03-217,098.09-85,694.90

Finding the Fourth Proportional to 157,315.03, 217,098.09 and 85,694.90

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Solution

The fourth proportional to 157,315.03, 217,098.09 and 85,694.90 is: 118,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,315.03 : 217,098.09 = 85,694.90 : x
  2. Step 2: Convert to fraction form
    157,315.03/217,098.09 = 85,694.90/x
  3. Step 3: Cross multiply
    157,315.03x = 217,098.09 × 85,694.90
  4. Step 4: Simplify right side
    157,315.03x = 18,604,198,027.25
  5. Step 5: Solve for x
    x = 18,604,198,027.25/157,315.03
  6. Step 6: Final answer
    x = 118,260.78

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1.5x scale

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.