Home / 212,451.32-293,145.53-127,570.20

Finding the Fourth Proportional to 212,451.32, 293,145.53 and 127,570.20

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Solution

The fourth proportional to 212,451.32, 293,145.53 and 127,570.20 is: 176,024.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,451.32 : 293,145.53 = 127,570.20 : x
  2. Step 2: Convert to fraction form
    212,451.32/293,145.53 = 127,570.20/x
  3. Step 3: Cross multiply
    212,451.32x = 293,145.53 × 127,570.20
  4. Step 4: Simplify right side
    212,451.32x = 37,396,633,891.21
  5. Step 5: Solve for x
    x = 37,396,633,891.21/212,451.32
  6. Step 6: Final answer
    x = 176,024.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.