Home / 138,728.79-208,093.17-58,779.36

Finding the Fourth Proportional to 138,728.79, 208,093.17 and 58,779.36

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Solution

The fourth proportional to 138,728.79, 208,093.17 and 58,779.36 is: 88,169.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,728.79 : 208,093.17 = 58,779.36 : x
  2. Step 2: Convert to fraction form
    138,728.79/208,093.17 = 58,779.36/x
  3. Step 3: Cross multiply
    138,728.79x = 208,093.17 × 58,779.36
  4. Step 4: Simplify right side
    138,728.79x = 12,231,583,352.97
  5. Step 5: Solve for x
    x = 12,231,583,352.97/138,728.79
  6. Step 6: Final answer
    x = 88,169.03

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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.