Home / 186,087.70-256,841.85-122,431.42

Finding the Fourth Proportional to 186,087.70, 256,841.85 and 122,431.42

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Solution

The fourth proportional to 186,087.70, 256,841.85 and 122,431.42 is: 168,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,087.70 : 256,841.85 = 122,431.42 : x
  2. Step 2: Convert to fraction form
    186,087.70/256,841.85 = 122,431.42/x
  3. Step 3: Cross multiply
    186,087.70x = 256,841.85 × 122,431.42
  4. Step 4: Simplify right side
    186,087.70x = 31,445,512,410.93
  5. Step 5: Solve for x
    x = 31,445,512,410.93/186,087.70
  6. Step 6: Final answer
    x = 168,982.22

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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.