Home / 151,625.70-209,285.10-87,984

Finding the Fourth Proportional to 151,625.70, 209,285.10 and 87,984

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Solution

The fourth proportional to 151,625.70, 209,285.10 and 87,984 is: 121,442.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,625.70 : 209,285.10 = 87,984 : x
  2. Step 2: Convert to fraction form
    151,625.70/209,285.10 = 87,984/x
  3. Step 3: Cross multiply
    151,625.70x = 209,285.10 × 87,984
  4. Step 4: Simplify right side
    151,625.70x = 18,413,740,238.40
  5. Step 5: Solve for x
    x = 18,413,740,238.40/151,625.70
  6. Step 6: Final answer
    x = 121,442.08

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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.