Home / 138,835.44-208,226.67-67,686.66

Finding the Fourth Proportional to 138,835.44, 208,226.67 and 67,686.66

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Solution

The fourth proportional to 138,835.44, 208,226.67 and 67,686.66 is: 101,517.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,835.44 : 208,226.67 = 67,686.66 : x
  2. Step 2: Convert to fraction form
    138,835.44/208,226.67 = 67,686.66/x
  3. Step 3: Cross multiply
    138,835.44x = 208,226.67 × 67,686.66
  4. Step 4: Simplify right side
    138,835.44x = 14,094,167,815.22
  5. Step 5: Solve for x
    x = 14,094,167,815.22/138,835.44
  6. Step 6: Final answer
    x = 101,517.08

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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.