Home / 171,439.90-257,451.45-127,116.70

Finding the Fourth Proportional to 171,439.90, 257,451.45 and 127,116.70

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Solution

The fourth proportional to 171,439.90, 257,451.45 and 127,116.70 is: 190,891.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,439.90 : 257,451.45 = 127,116.70 : x
  2. Step 2: Convert to fraction form
    171,439.90/257,451.45 = 127,116.70/x
  3. Step 3: Cross multiply
    171,439.90x = 257,451.45 × 127,116.70
  4. Step 4: Simplify right side
    171,439.90x = 32,726,378,734.22
  5. Step 5: Solve for x
    x = 32,726,378,734.22/171,439.90
  6. Step 6: Final answer
    x = 190,891.26

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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.