Home / 189,250.17-283,875.27-76,991.43

Finding the Fourth Proportional to 189,250.17, 283,875.27 and 76,991.43

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Solution

The fourth proportional to 189,250.17, 283,875.27 and 76,991.43 is: 115,487.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,250.17 : 283,875.27 = 76,991.43 : x
  2. Step 2: Convert to fraction form
    189,250.17/283,875.27 = 76,991.43/x
  3. Step 3: Cross multiply
    189,250.17x = 283,875.27 × 76,991.43
  4. Step 4: Simplify right side
    189,250.17x = 21,855,962,978.94
  5. Step 5: Solve for x
    x = 21,855,962,978.94/189,250.17
  6. Step 6: Final answer
    x = 115,487.15

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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.