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Finding the Fourth Proportional to 159,212.40, 219,744.48 and 91,274.94

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Solution

The fourth proportional to 159,212.40, 219,744.48 and 91,274.94 is: 125,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,212.40 : 219,744.48 = 91,274.94 : x
  2. Step 2: Convert to fraction form
    159,212.40/219,744.48 = 91,274.94/x
  3. Step 3: Cross multiply
    159,212.40x = 219,744.48 × 91,274.94
  4. Step 4: Simplify right side
    159,212.40x = 20,057,164,227.33
  5. Step 5: Solve for x
    x = 20,057,164,227.33/159,212.40
  6. Step 6: Final answer
    x = 125,977.40

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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.