Home / 171,721.20-257,581.80-153,350.40

Finding the Fourth Proportional to 171,721.20, 257,581.80 and 153,350.40

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Solution

The fourth proportional to 171,721.20, 257,581.80 and 153,350.40 is: 230,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,721.20 : 257,581.80 = 153,350.40 : x
  2. Step 2: Convert to fraction form
    171,721.20/257,581.80 = 153,350.40/x
  3. Step 3: Cross multiply
    171,721.20x = 257,581.80 × 153,350.40
  4. Step 4: Simplify right side
    171,721.20x = 39,500,272,062.72
  5. Step 5: Solve for x
    x = 39,500,272,062.72/171,721.20
  6. Step 6: Final answer
    x = 230,025.60

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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.