Home / 171,972.78-257,805.27-66,766.74

Finding the Fourth Proportional to 171,972.78, 257,805.27 and 66,766.74

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Solution

The fourth proportional to 171,972.78, 257,805.27 and 66,766.74 is: 100,090.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,972.78 : 257,805.27 = 66,766.74 : x
  2. Step 2: Convert to fraction form
    171,972.78/257,805.27 = 66,766.74/x
  3. Step 3: Cross multiply
    171,972.78x = 257,805.27 × 66,766.74
  4. Step 4: Simplify right side
    171,972.78x = 17,212,817,432.72
  5. Step 5: Solve for x
    x = 17,212,817,432.72/171,972.78
  6. Step 6: Final answer
    x = 100,090.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.