Home / 136,710.30-205,065.45-122,932.20

Finding the Fourth Proportional to 136,710.30, 205,065.45 and 122,932.20

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Solution

The fourth proportional to 136,710.30, 205,065.45 and 122,932.20 is: 184,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,710.30 : 205,065.45 = 122,932.20 : x
  2. Step 2: Convert to fraction form
    136,710.30/205,065.45 = 122,932.20/x
  3. Step 3: Cross multiply
    136,710.30x = 205,065.45 × 122,932.20
  4. Step 4: Simplify right side
    136,710.30x = 25,209,146,912.49
  5. Step 5: Solve for x
    x = 25,209,146,912.49/136,710.30
  6. Step 6: Final answer
    x = 184,398.30

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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.