Home / 157,364.75-217,163.38-85,744.78

Finding the Fourth Proportional to 157,364.75, 217,163.38 and 85,744.78

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Solution

The fourth proportional to 157,364.75, 217,163.38 and 85,744.78 is: 118,327.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,364.75 : 217,163.38 = 85,744.78 : x
  2. Step 2: Convert to fraction form
    157,364.75/217,163.38 = 85,744.78/x
  3. Step 3: Cross multiply
    157,364.75x = 217,163.38 × 85,744.78
  4. Step 4: Simplify right side
    157,364.75x = 18,620,626,242.16
  5. Step 5: Solve for x
    x = 18,620,626,242.16/157,364.75
  6. Step 6: Final answer
    x = 118,327.81

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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.