Home / 130,108.42-179,450.55-111,989.97

Finding the Fourth Proportional to 130,108.42, 179,450.55 and 111,989.97

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Solution

The fourth proportional to 130,108.42, 179,450.55 and 111,989.97 is: 154,460.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,108.42 : 179,450.55 = 111,989.97 : x
  2. Step 2: Convert to fraction form
    130,108.42/179,450.55 = 111,989.97/x
  3. Step 3: Cross multiply
    130,108.42x = 179,450.55 × 111,989.97
  4. Step 4: Simplify right side
    130,108.42x = 20,096,661,710.98
  5. Step 5: Solve for x
    x = 20,096,661,710.98/130,108.42
  6. Step 6: Final answer
    x = 154,460.88

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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.