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Finding the Fourth Proportional to 158,879.82, 219,267.09 and 87,273.66

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Solution

The fourth proportional to 158,879.82, 219,267.09 and 87,273.66 is: 120,444.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,879.82 : 219,267.09 = 87,273.66 : x
  2. Step 2: Convert to fraction form
    158,879.82/219,267.09 = 87,273.66/x
  3. Step 3: Cross multiply
    158,879.82x = 219,267.09 × 87,273.66
  4. Step 4: Simplify right side
    158,879.82x = 19,136,241,461.85
  5. Step 5: Solve for x
    x = 19,136,241,461.85/158,879.82
  6. Step 6: Final answer
    x = 120,444.76

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1.5x scale

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.