Home / 138,531.42-207,808.05-43,768.92

Finding the Fourth Proportional to 138,531.42, 207,808.05 and 43,768.92

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Solution

The fourth proportional to 138,531.42, 207,808.05 and 43,768.92 is: 65,656.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,531.42 : 207,808.05 = 43,768.92 : x
  2. Step 2: Convert to fraction form
    138,531.42/207,808.05 = 43,768.92/x
  3. Step 3: Cross multiply
    138,531.42x = 207,808.05 × 43,768.92
  4. Step 4: Simplify right side
    138,531.42x = 9,095,533,915.81
  5. Step 5: Solve for x
    x = 9,095,533,915.81/138,531.42
  6. Step 6: Final answer
    x = 65,656.83

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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.