Home / 130,112.91-179,456.76-111,994.47

Finding the Fourth Proportional to 130,112.91, 179,456.76 and 111,994.47

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Solution

The fourth proportional to 130,112.91, 179,456.76 and 111,994.47 is: 154,467.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,112.91 : 179,456.76 = 111,994.47 : x
  2. Step 2: Convert to fraction form
    130,112.91/179,456.76 = 111,994.47/x
  3. Step 3: Cross multiply
    130,112.91x = 179,456.76 × 111,994.47
  4. Step 4: Simplify right side
    130,112.91x = 20,098,164,724.12
  5. Step 5: Solve for x
    x = 20,098,164,724.12/130,112.91
  6. Step 6: Final answer
    x = 154,467.11

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1.5x scale

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.