Home / 139,125.06-191,783.23-108,857.79

Finding the Fourth Proportional to 139,125.06, 191,783.23 and 108,857.79

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Solution

The fourth proportional to 139,125.06, 191,783.23 and 108,857.79 is: 150,059.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,125.06 : 191,783.23 = 108,857.79 : x
  2. Step 2: Convert to fraction form
    139,125.06/191,783.23 = 108,857.79/x
  3. Step 3: Cross multiply
    139,125.06x = 191,783.23 × 108,857.79
  4. Step 4: Simplify right side
    139,125.06x = 20,877,098,304.72
  5. Step 5: Solve for x
    x = 20,877,098,304.72/139,125.06
  6. Step 6: Final answer
    x = 150,059.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.