Home / 136,697.32-205,092.18-86,134.36

Finding the Fourth Proportional to 136,697.32, 205,092.18 and 86,134.36

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Solution

The fourth proportional to 136,697.32, 205,092.18 and 86,134.36 is: 129,230.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,697.32 : 205,092.18 = 86,134.36 : x
  2. Step 2: Convert to fraction form
    136,697.32/205,092.18 = 86,134.36/x
  3. Step 3: Cross multiply
    136,697.32x = 205,092.18 × 86,134.36
  4. Step 4: Simplify right side
    136,697.32x = 17,665,483,665.30
  5. Step 5: Solve for x
    x = 17,665,483,665.30/136,697.32
  6. Step 6: Final answer
    x = 129,230.65

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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.