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Finding the Fourth Proportional to 186,425.94, 279,117.78 and 100,729.77

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Solution

The fourth proportional to 186,425.94, 279,117.78 and 100,729.77 is: 150,813.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,425.94 : 279,117.78 = 100,729.77 : x
  2. Step 2: Convert to fraction form
    186,425.94/279,117.78 = 100,729.77/x
  3. Step 3: Cross multiply
    186,425.94x = 279,117.78 × 100,729.77
  4. Step 4: Simplify right side
    186,425.94x = 28,115,469,782.31
  5. Step 5: Solve for x
    x = 28,115,469,782.31/186,425.94
  6. Step 6: Final answer
    x = 150,813.08

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1.5x scale

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.