Home / 185,577.72-278,273.40-90,815

Finding the Fourth Proportional to 185,577.72, 278,273.40 and 90,815

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Solution

The fourth proportional to 185,577.72, 278,273.40 and 90,815 is: 136,176.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,577.72 : 278,273.40 = 90,815 : x
  2. Step 2: Convert to fraction form
    185,577.72/278,273.40 = 90,815/x
  3. Step 3: Cross multiply
    185,577.72x = 278,273.40 × 90,815
  4. Step 4: Simplify right side
    185,577.72x = 25,271,398,821.00
  5. Step 5: Solve for x
    x = 25,271,398,821.00/185,577.72
  6. Step 6: Final answer
    x = 136,176.90

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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.