Home / 189,370.86-284,035.31-67,786.57

Finding the Fourth Proportional to 189,370.86, 284,035.31 and 67,786.57

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Solution

The fourth proportional to 189,370.86, 284,035.31 and 67,786.57 is: 101,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,370.86 : 284,035.31 = 67,786.57 : x
  2. Step 2: Convert to fraction form
    189,370.86/284,035.31 = 67,786.57/x
  3. Step 3: Cross multiply
    189,370.86x = 284,035.31 × 67,786.57
  4. Step 4: Simplify right side
    189,370.86x = 19,253,779,694.10
  5. Step 5: Solve for x
    x = 19,253,779,694.10/189,370.86
  6. Step 6: Final answer
    x = 101,672.35

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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.