Home / 155,961.72-215,227.26-84,342.33

Finding the Fourth Proportional to 155,961.72, 215,227.26 and 84,342.33

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Solution

The fourth proportional to 155,961.72, 215,227.26 and 84,342.33 is: 116,392.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,961.72 : 215,227.26 = 84,342.33 : x
  2. Step 2: Convert to fraction form
    155,961.72/215,227.26 = 84,342.33/x
  3. Step 3: Cross multiply
    155,961.72x = 215,227.26 × 84,342.33
  4. Step 4: Simplify right side
    155,961.72x = 18,152,768,587.92
  5. Step 5: Solve for x
    x = 18,152,768,587.92/155,961.72
  6. Step 6: Final answer
    x = 116,392.46

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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.