Home / 172,353.72-258,501.36-47,665.56

Finding the Fourth Proportional to 172,353.72, 258,501.36 and 47,665.56

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Solution

The fourth proportional to 172,353.72, 258,501.36 and 47,665.56 is: 71,490.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,353.72 : 258,501.36 = 47,665.56 : x
  2. Step 2: Convert to fraction form
    172,353.72/258,501.36 = 47,665.56/x
  3. Step 3: Cross multiply
    172,353.72x = 258,501.36 × 47,665.56
  4. Step 4: Simplify right side
    172,353.72x = 12,321,612,085.16
  5. Step 5: Solve for x
    x = 12,321,612,085.16/172,353.72
  6. Step 6: Final answer
    x = 71,490.26

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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.