Home / 138,056.34-207,084.78-38,216.82

Finding the Fourth Proportional to 138,056.34, 207,084.78 and 38,216.82

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Solution

The fourth proportional to 138,056.34, 207,084.78 and 38,216.82 is: 57,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,056.34 : 207,084.78 = 38,216.82 : x
  2. Step 2: Convert to fraction form
    138,056.34/207,084.78 = 38,216.82/x
  3. Step 3: Cross multiply
    138,056.34x = 207,084.78 × 38,216.82
  4. Step 4: Simplify right side
    138,056.34x = 7,914,121,762.00
  5. Step 5: Solve for x
    x = 7,914,121,762.00/138,056.34
  6. Step 6: Final answer
    x = 57,325.30

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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.