Home / 171,621.60-257,432.40-45,261.60

Finding the Fourth Proportional to 171,621.60, 257,432.40 and 45,261.60

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Solution

The fourth proportional to 171,621.60, 257,432.40 and 45,261.60 is: 67,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,621.60 : 257,432.40 = 45,261.60 : x
  2. Step 2: Convert to fraction form
    171,621.60/257,432.40 = 45,261.60/x
  3. Step 3: Cross multiply
    171,621.60x = 257,432.40 × 45,261.60
  4. Step 4: Simplify right side
    171,621.60x = 11,651,802,315.84
  5. Step 5: Solve for x
    x = 11,651,802,315.84/171,621.60
  6. Step 6: Final answer
    x = 67,892.40

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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.