Home / 281,650.92-422,545.62-81,973.08

Finding the Fourth Proportional to 281,650.92, 422,545.62 and 81,973.08

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Solution

The fourth proportional to 281,650.92, 422,545.62 and 81,973.08 is: 122,979.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,650.92 : 422,545.62 = 81,973.08 : x
  2. Step 2: Convert to fraction form
    281,650.92/422,545.62 = 81,973.08/x
  3. Step 3: Cross multiply
    281,650.92x = 422,545.62 × 81,973.08
  4. Step 4: Simplify right side
    281,650.92x = 34,637,365,911.91
  5. Step 5: Solve for x
    x = 34,637,365,911.91/281,650.92
  6. Step 6: Final answer
    x = 122,979.77

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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.