Home / 129,700.80-179,031.48-76,002.96

Finding the Fourth Proportional to 129,700.80, 179,031.48 and 76,002.96

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Solution

The fourth proportional to 129,700.80, 179,031.48 and 76,002.96 is: 104,910.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,700.80 : 179,031.48 = 76,002.96 : x
  2. Step 2: Convert to fraction form
    129,700.80/179,031.48 = 76,002.96/x
  3. Step 3: Cross multiply
    129,700.80x = 179,031.48 × 76,002.96
  4. Step 4: Simplify right side
    129,700.80x = 13,606,922,413.18
  5. Step 5: Solve for x
    x = 13,606,922,413.18/129,700.80
  6. Step 6: Final answer
    x = 104,910.09

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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.