Home / 138,868.13-208,100.90-58,795.56

Finding the Fourth Proportional to 138,868.13, 208,100.90 and 58,795.56

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Solution

The fourth proportional to 138,868.13, 208,100.90 and 58,795.56 is: 88,108.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,868.13 : 208,100.90 = 58,795.56 : x
  2. Step 2: Convert to fraction form
    138,868.13/208,100.90 = 58,795.56/x
  3. Step 3: Cross multiply
    138,868.13x = 208,100.90 × 58,795.56
  4. Step 4: Simplify right side
    138,868.13x = 12,235,408,658.03
  5. Step 5: Solve for x
    x = 12,235,408,658.03/138,868.13
  6. Step 6: Final answer
    x = 88,108.11

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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.