Home / 130,786.80-180,540.72-110,747.58

Finding the Fourth Proportional to 130,786.80, 180,540.72 and 110,747.58

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Solution

The fourth proportional to 130,786.80, 180,540.72 and 110,747.58 is: 152,878.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,786.80 : 180,540.72 = 110,747.58 : x
  2. Step 2: Convert to fraction form
    130,786.80/180,540.72 = 110,747.58/x
  3. Step 3: Cross multiply
    130,786.80x = 180,540.72 × 110,747.58
  4. Step 4: Simplify right side
    130,786.80x = 19,994,447,831.46
  5. Step 5: Solve for x
    x = 19,994,447,831.46/130,786.80
  6. Step 6: Final answer
    x = 152,878.18

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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.