Home / 138,822.60-208,207.63-67,673.82

Finding the Fourth Proportional to 138,822.60, 208,207.63 and 67,673.82

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Solution

The fourth proportional to 138,822.60, 208,207.63 and 67,673.82 is: 101,497.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,822.60 : 208,207.63 = 67,673.82 : x
  2. Step 2: Convert to fraction form
    138,822.60/208,207.63 = 67,673.82/x
  3. Step 3: Cross multiply
    138,822.60x = 208,207.63 × 67,673.82
  4. Step 4: Simplify right side
    138,822.60x = 14,090,205,675.25
  5. Step 5: Solve for x
    x = 14,090,205,675.25/138,822.60
  6. Step 6: Final answer
    x = 101,497.92

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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.