Home / 189,551.09-284,326.10-77,204.90

Finding the Fourth Proportional to 189,551.09, 284,326.10 and 77,204.90

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Solution

The fourth proportional to 189,551.09, 284,326.10 and 77,204.90 is: 115,807.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,551.09 : 284,326.10 = 77,204.90 : x
  2. Step 2: Convert to fraction form
    189,551.09/284,326.10 = 77,204.90/x
  3. Step 3: Cross multiply
    189,551.09x = 284,326.10 × 77,204.90
  4. Step 4: Simplify right side
    189,551.09x = 21,951,367,132.86
  5. Step 5: Solve for x
    x = 21,951,367,132.86/189,551.09
  6. Step 6: Final answer
    x = 115,807.13

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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.