Home / 157,440.08-217,273.38-85,824.20

Finding the Fourth Proportional to 157,440.08, 217,273.38 and 85,824.20

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Solution

The fourth proportional to 157,440.08, 217,273.38 and 85,824.20 is: 118,440.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,440.08 : 217,273.38 = 85,824.20 : x
  2. Step 2: Convert to fraction form
    157,440.08/217,273.38 = 85,824.20/x
  3. Step 3: Cross multiply
    157,440.08x = 217,273.38 × 85,824.20
  4. Step 4: Simplify right side
    157,440.08x = 18,647,314,019.80
  5. Step 5: Solve for x
    x = 18,647,314,019.80/157,440.08
  6. Step 6: Final answer
    x = 118,440.70

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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.