Home / 191,056.11-286,147.13-91,286.43

Finding the Fourth Proportional to 191,056.11, 286,147.13 and 91,286.43

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Solution

The fourth proportional to 191,056.11, 286,147.13 and 91,286.43 is: 136,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,056.11 : 286,147.13 = 91,286.43 : x
  2. Step 2: Convert to fraction form
    191,056.11/286,147.13 = 91,286.43/x
  3. Step 3: Cross multiply
    191,056.11x = 286,147.13 × 91,286.43
  4. Step 4: Simplify right side
    191,056.11x = 26,121,349,496.01
  5. Step 5: Solve for x
    x = 26,121,349,496.01/191,056.11
  6. Step 6: Final answer
    x = 136,720.83

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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.