Home / 204,946.80-307,463.40-86,557.20

Finding the Fourth Proportional to 204,946.80, 307,463.40 and 86,557.20

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Solution

The fourth proportional to 204,946.80, 307,463.40 and 86,557.20 is: 129,854.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,946.80 : 307,463.40 = 86,557.20 : x
  2. Step 2: Convert to fraction form
    204,946.80/307,463.40 = 86,557.20/x
  3. Step 3: Cross multiply
    204,946.80x = 307,463.40 × 86,557.20
  4. Step 4: Simplify right side
    204,946.80x = 26,613,171,006.48
  5. Step 5: Solve for x
    x = 26,613,171,006.48/204,946.80
  6. Step 6: Final answer
    x = 129,854.05

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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.