Home / 151,537.78-209,141.12-87,027.26

Finding the Fourth Proportional to 151,537.78, 209,141.12 and 87,027.26

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Solution

The fourth proportional to 151,537.78, 209,141.12 and 87,027.26 is: 120,108.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,537.78 : 209,141.12 = 87,027.26 : x
  2. Step 2: Convert to fraction form
    151,537.78/209,141.12 = 87,027.26/x
  3. Step 3: Cross multiply
    151,537.78x = 209,141.12 × 87,027.26
  4. Step 4: Simplify right side
    151,537.78x = 18,200,977,798.79
  5. Step 5: Solve for x
    x = 18,200,977,798.79/151,537.78
  6. Step 6: Final answer
    x = 120,108.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.