Home / 134,799.76-186,110.16-120,628

Finding the Fourth Proportional to 134,799.76, 186,110.16 and 120,628

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Solution

The fourth proportional to 134,799.76, 186,110.16 and 120,628 is: 166,544.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,799.76 : 186,110.16 = 120,628 : x
  2. Step 2: Convert to fraction form
    134,799.76/186,110.16 = 120,628/x
  3. Step 3: Cross multiply
    134,799.76x = 186,110.16 × 120,628
  4. Step 4: Simplify right side
    134,799.76x = 22,450,096,380.48
  5. Step 5: Solve for x
    x = 22,450,096,380.48/134,799.76
  6. Step 6: Final answer
    x = 166,544.04

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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.