Home / 215,427.80-323,289.32-75,186.43

Finding the Fourth Proportional to 215,427.80, 323,289.32 and 75,186.43

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Solution

The fourth proportional to 215,427.80, 323,289.32 and 75,186.43 is: 112,831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,427.80 : 323,289.32 = 75,186.43 : x
  2. Step 2: Convert to fraction form
    215,427.80/323,289.32 = 75,186.43/x
  3. Step 3: Cross multiply
    215,427.80x = 323,289.32 × 75,186.43
  4. Step 4: Simplify right side
    215,427.80x = 24,306,968,643.77
  5. Step 5: Solve for x
    x = 24,306,968,643.77/215,427.80
  6. Step 6: Final answer
    x = 112,831.16

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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.