Home / 130,105.48-179,446.49-111,987.04

Finding the Fourth Proportional to 130,105.48, 179,446.49 and 111,987.04

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Solution

The fourth proportional to 130,105.48, 179,446.49 and 111,987.04 is: 154,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,105.48 : 179,446.49 = 111,987.04 : x
  2. Step 2: Convert to fraction form
    130,105.48/179,446.49 = 111,987.04/x
  3. Step 3: Cross multiply
    130,105.48x = 179,446.49 × 111,987.04
  4. Step 4: Simplify right side
    130,105.48x = 20,095,681,253.49
  5. Step 5: Solve for x
    x = 20,095,681,253.49/130,105.48
  6. Step 6: Final answer
    x = 154,456.84

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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.