Home / 131,122.48-180,947.32-73,761.66

Finding the Fourth Proportional to 131,122.48, 180,947.32 and 73,761.66

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Solution

The fourth proportional to 131,122.48, 180,947.32 and 73,761.66 is: 101,790.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,122.48 : 180,947.32 = 73,761.66 : x
  2. Step 2: Convert to fraction form
    131,122.48/180,947.32 = 73,761.66/x
  3. Step 3: Cross multiply
    131,122.48x = 180,947.32 × 73,761.66
  4. Step 4: Simplify right side
    131,122.48x = 13,346,974,219.82
  5. Step 5: Solve for x
    x = 13,346,974,219.82/131,122.48
  6. Step 6: Final answer
    x = 101,790.13

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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.