Home / 189,156.45-284,056.06-126,379.98

Finding the Fourth Proportional to 189,156.45, 284,056.06 and 126,379.98

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Solution

The fourth proportional to 189,156.45, 284,056.06 and 126,379.98 is: 189,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,156.45 : 284,056.06 = 126,379.98 : x
  2. Step 2: Convert to fraction form
    189,156.45/284,056.06 = 126,379.98/x
  3. Step 3: Cross multiply
    189,156.45x = 284,056.06 × 126,379.98
  4. Step 4: Simplify right side
    189,156.45x = 35,898,999,181.68
  5. Step 5: Solve for x
    x = 35,898,999,181.68/189,156.45
  6. Step 6: Final answer
    x = 189,784.70

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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.