Home / 131,133.67-180,947.42-73,771.05

Finding the Fourth Proportional to 131,133.67, 180,947.42 and 73,771.05

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Solution

The fourth proportional to 131,133.67, 180,947.42 and 73,771.05 is: 101,794.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,133.67 : 180,947.42 = 73,771.05 : x
  2. Step 2: Convert to fraction form
    131,133.67/180,947.42 = 73,771.05/x
  3. Step 3: Cross multiply
    131,133.67x = 180,947.42 × 73,771.05
  4. Step 4: Simplify right side
    131,133.67x = 13,348,681,754.53
  5. Step 5: Solve for x
    x = 13,348,681,754.53/131,133.67
  6. Step 6: Final answer
    x = 101,794.47

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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.