Home / 136,337.78-204,539.13-68,703.64

Finding the Fourth Proportional to 136,337.78, 204,539.13 and 68,703.64

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Solution

The fourth proportional to 136,337.78, 204,539.13 and 68,703.64 is: 103,071.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,337.78 : 204,539.13 = 68,703.64 : x
  2. Step 2: Convert to fraction form
    136,337.78/204,539.13 = 68,703.64/x
  3. Step 3: Cross multiply
    136,337.78x = 204,539.13 × 68,703.64
  4. Step 4: Simplify right side
    136,337.78x = 14,052,582,242.09
  5. Step 5: Solve for x
    x = 14,052,582,242.09/136,337.78
  6. Step 6: Final answer
    x = 103,071.81

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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.