Home / 189,038.39-283,090.71-140,891.56

Finding the Fourth Proportional to 189,038.39, 283,090.71 and 140,891.56

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Solution

The fourth proportional to 189,038.39, 283,090.71 and 140,891.56 is: 210,989.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,038.39 : 283,090.71 = 140,891.56 : x
  2. Step 2: Convert to fraction form
    189,038.39/283,090.71 = 140,891.56/x
  3. Step 3: Cross multiply
    189,038.39x = 283,090.71 × 140,891.56
  4. Step 4: Simplify right side
    189,038.39x = 39,885,091,753.41
  5. Step 5: Solve for x
    x = 39,885,091,753.41/189,038.39
  6. Step 6: Final answer
    x = 210,989.37

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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.