Home / 205,016.16-307,546.12-86,699.46

Finding the Fourth Proportional to 205,016.16, 307,546.12 and 86,699.46

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Solution

The fourth proportional to 205,016.16, 307,546.12 and 86,699.46 is: 130,058.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,016.16 : 307,546.12 = 86,699.46 : x
  2. Step 2: Convert to fraction form
    205,016.16/307,546.12 = 86,699.46/x
  3. Step 3: Cross multiply
    205,016.16x = 307,546.12 × 86,699.46
  4. Step 4: Simplify right side
    205,016.16x = 26,664,082,529.10
  5. Step 5: Solve for x
    x = 26,664,082,529.10/205,016.16
  6. Step 6: Final answer
    x = 130,058.44

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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.