Home / 126,019.85-173,910.53-77,603.45

Finding the Fourth Proportional to 126,019.85, 173,910.53 and 77,603.45

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Solution

The fourth proportional to 126,019.85, 173,910.53 and 77,603.45 is: 107,094.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,019.85 : 173,910.53 = 77,603.45 : x
  2. Step 2: Convert to fraction form
    126,019.85/173,910.53 = 77,603.45/x
  3. Step 3: Cross multiply
    126,019.85x = 173,910.53 × 77,603.45
  4. Step 4: Simplify right side
    126,019.85x = 13,496,056,731.31
  5. Step 5: Solve for x
    x = 13,496,056,731.31/126,019.85
  6. Step 6: Final answer
    x = 107,094.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.