Home / 157,834.50-217,810.32-86,214.54

Finding the Fourth Proportional to 157,834.50, 217,810.32 and 86,214.54

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Solution

The fourth proportional to 157,834.50, 217,810.32 and 86,214.54 is: 118,975.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,834.50 : 217,810.32 = 86,214.54 : x
  2. Step 2: Convert to fraction form
    157,834.50/217,810.32 = 86,214.54/x
  3. Step 3: Cross multiply
    157,834.50x = 217,810.32 × 86,214.54
  4. Step 4: Simplify right side
    157,834.50x = 18,778,416,546.05
  5. Step 5: Solve for x
    x = 18,778,416,546.05/157,834.50
  6. Step 6: Final answer
    x = 118,975.36

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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.