Home / 189,156.33-284,055.89-126,379.86

Finding the Fourth Proportional to 189,156.33, 284,055.89 and 126,379.86

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Solution

The fourth proportional to 189,156.33, 284,055.89 and 126,379.86 is: 189,784.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,156.33 : 284,055.89 = 126,379.86 : x
  2. Step 2: Convert to fraction form
    189,156.33/284,055.89 = 126,379.86/x
  3. Step 3: Cross multiply
    189,156.33x = 284,055.89 × 126,379.86
  4. Step 4: Simplify right side
    189,156.33x = 35,898,942,978.48
  5. Step 5: Solve for x
    x = 35,898,942,978.48/189,156.33
  6. Step 6: Final answer
    x = 189,784.52

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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.