Home / 130,718.61-180,395.25-73,361.43

Finding the Fourth Proportional to 130,718.61, 180,395.25 and 73,361.43

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Solution

The fourth proportional to 130,718.61, 180,395.25 and 73,361.43 is: 101,240.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,718.61 : 180,395.25 = 73,361.43 : x
  2. Step 2: Convert to fraction form
    130,718.61/180,395.25 = 73,361.43/x
  3. Step 3: Cross multiply
    130,718.61x = 180,395.25 × 73,361.43
  4. Step 4: Simplify right side
    130,718.61x = 13,234,053,505.21
  5. Step 5: Solve for x
    x = 13,234,053,505.21/130,718.61
  6. Step 6: Final answer
    x = 101,240.78

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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.