Home / 171,528.91-257,220.46-70,257.15

Finding the Fourth Proportional to 171,528.91, 257,220.46 and 70,257.15

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Solution

The fourth proportional to 171,528.91, 257,220.46 and 70,257.15 is: 105,355.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,528.91 : 257,220.46 = 70,257.15 : x
  2. Step 2: Convert to fraction form
    171,528.91/257,220.46 = 70,257.15/x
  3. Step 3: Cross multiply
    171,528.91x = 257,220.46 × 70,257.15
  4. Step 4: Simplify right side
    171,528.91x = 18,071,576,441.29
  5. Step 5: Solve for x
    x = 18,071,576,441.29/171,528.91
  6. Step 6: Final answer
    x = 105,355.86

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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.