Home / 205,014.60-307,521.90-125,872.20

Finding the Fourth Proportional to 205,014.60, 307,521.90 and 125,872.20

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Solution

The fourth proportional to 205,014.60, 307,521.90 and 125,872.20 is: 188,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,014.60 : 307,521.90 = 125,872.20 : x
  2. Step 2: Convert to fraction form
    205,014.60/307,521.90 = 125,872.20/x
  3. Step 3: Cross multiply
    205,014.60x = 307,521.90 × 125,872.20
  4. Step 4: Simplify right side
    205,014.60x = 38,708,458,101.18
  5. Step 5: Solve for x
    x = 38,708,458,101.18/205,014.60
  6. Step 6: Final answer
    x = 188,808.30

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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.