Home / 131,928.40-182,061.30-77,469.94

Finding the Fourth Proportional to 131,928.40, 182,061.30 and 77,469.94

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Solution

The fourth proportional to 131,928.40, 182,061.30 and 77,469.94 is: 106,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,928.40 : 182,061.30 = 77,469.94 : x
  2. Step 2: Convert to fraction form
    131,928.40/182,061.30 = 77,469.94/x
  3. Step 3: Cross multiply
    131,928.40x = 182,061.30 × 77,469.94
  4. Step 4: Simplify right side
    131,928.40x = 14,104,277,987.32
  5. Step 5: Solve for x
    x = 14,104,277,987.32/131,928.40
  6. Step 6: Final answer
    x = 106,908.58

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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.