Home / 212,831.12-319,201.84-63,072.72

Finding the Fourth Proportional to 212,831.12, 319,201.84 and 63,072.72

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Solution

The fourth proportional to 212,831.12, 319,201.84 and 63,072.72 is: 94,595.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,831.12 : 319,201.84 = 63,072.72 : x
  2. Step 2: Convert to fraction form
    212,831.12/319,201.84 = 63,072.72/x
  3. Step 3: Cross multiply
    212,831.12x = 319,201.84 × 63,072.72
  4. Step 4: Simplify right side
    212,831.12x = 20,132,928,277.80
  5. Step 5: Solve for x
    x = 20,132,928,277.80/212,831.12
  6. Step 6: Final answer
    x = 94,595.79

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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.