Home / 129,972.52-179,362.11-70,356.52

Finding the Fourth Proportional to 129,972.52, 179,362.11 and 70,356.52

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Solution

The fourth proportional to 129,972.52, 179,362.11 and 70,356.52 is: 97,092.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,972.52 : 179,362.11 = 70,356.52 : x
  2. Step 2: Convert to fraction form
    129,972.52/179,362.11 = 70,356.52/x
  3. Step 3: Cross multiply
    129,972.52x = 179,362.11 × 70,356.52
  4. Step 4: Simplify right side
    129,972.52x = 12,619,293,879.46
  5. Step 5: Solve for x
    x = 12,619,293,879.46/129,972.52
  6. Step 6: Final answer
    x = 97,092.02

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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.