Home / 213,133.20-293,943.24-128,234.40

Finding the Fourth Proportional to 213,133.20, 293,943.24 and 128,234.40

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Solution

The fourth proportional to 213,133.20, 293,943.24 and 128,234.40 is: 176,854.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,133.20 : 293,943.24 = 128,234.40 : x
  2. Step 2: Convert to fraction form
    213,133.20/293,943.24 = 128,234.40/x
  3. Step 3: Cross multiply
    213,133.20x = 293,943.24 × 128,234.40
  4. Step 4: Simplify right side
    213,133.20x = 37,693,635,015.46
  5. Step 5: Solve for x
    x = 37,693,635,015.46/213,133.20
  6. Step 6: Final answer
    x = 176,854.83

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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.