Home / 205,518.32-308,292.60-87,176.24

Finding the Fourth Proportional to 205,518.32, 308,292.60 and 87,176.24

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Solution

The fourth proportional to 205,518.32, 308,292.60 and 87,176.24 is: 130,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,518.32 : 308,292.60 = 87,176.24 : x
  2. Step 2: Convert to fraction form
    205,518.32/308,292.60 = 87,176.24/x
  3. Step 3: Cross multiply
    205,518.32x = 308,292.60 × 87,176.24
  4. Step 4: Simplify right side
    205,518.32x = 26,875,789,687.82
  5. Step 5: Solve for x
    x = 26,875,789,687.82/205,518.32
  6. Step 6: Final answer
    x = 130,770.77

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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.