Home / 189,370.90-284,053.92-54,438.16

Finding the Fourth Proportional to 189,370.90, 284,053.92 and 54,438.16

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Solution

The fourth proportional to 189,370.90, 284,053.92 and 54,438.16 is: 81,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,370.90 : 284,053.92 = 54,438.16 : x
  2. Step 2: Convert to fraction form
    189,370.90/284,053.92 = 54,438.16/x
  3. Step 3: Cross multiply
    189,370.90x = 284,053.92 × 54,438.16
  4. Step 4: Simplify right side
    189,370.90x = 15,463,372,745.59
  5. Step 5: Solve for x
    x = 15,463,372,745.59/189,370.90
  6. Step 6: Final answer
    x = 81,656.54

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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.