Home / 130,109.42-179,451.93-111,990.97

Finding the Fourth Proportional to 130,109.42, 179,451.93 and 111,990.97

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Solution

The fourth proportional to 130,109.42, 179,451.93 and 111,990.97 is: 154,462.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,109.42 : 179,451.93 = 111,990.97 : x
  2. Step 2: Convert to fraction form
    130,109.42/179,451.93 = 111,990.97/x
  3. Step 3: Cross multiply
    130,109.42x = 179,451.93 × 111,990.97
  4. Step 4: Simplify right side
    130,109.42x = 20,096,995,709.07
  5. Step 5: Solve for x
    x = 20,096,995,709.07/130,109.42
  6. Step 6: Final answer
    x = 154,462.26

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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.