Home / 155,115.45-232,739.10-87,656.73

Finding the Fourth Proportional to 155,115.45, 232,739.10 and 87,656.73

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Solution

The fourth proportional to 155,115.45, 232,739.10 and 87,656.73 is: 131,522.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,115.45 : 232,739.10 = 87,656.73 : x
  2. Step 2: Convert to fraction form
    155,115.45/232,739.10 = 87,656.73/x
  3. Step 3: Cross multiply
    155,115.45x = 232,739.10 × 87,656.73
  4. Step 4: Simplify right side
    155,115.45x = 20,401,148,449.14
  5. Step 5: Solve for x
    x = 20,401,148,449.14/155,115.45
  6. Step 6: Final answer
    x = 131,522.35

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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.