Home / 255,091.20-382,677.30-86,627.40

Finding the Fourth Proportional to 255,091.20, 382,677.30 and 86,627.40

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Solution

The fourth proportional to 255,091.20, 382,677.30 and 86,627.40 is: 129,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,091.20 : 382,677.30 = 86,627.40 : x
  2. Step 2: Convert to fraction form
    255,091.20/382,677.30 = 86,627.40/x
  3. Step 3: Cross multiply
    255,091.20x = 382,677.30 × 86,627.40
  4. Step 4: Simplify right side
    255,091.20x = 33,150,339,538.02
  5. Step 5: Solve for x
    x = 33,150,339,538.02/255,091.20
  6. Step 6: Final answer
    x = 129,954.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.