Home / 130,531.41-180,166.02-80,201.25

Finding the Fourth Proportional to 130,531.41, 180,166.02 and 80,201.25

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Solution

The fourth proportional to 130,531.41, 180,166.02 and 80,201.25 is: 110,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,531.41 : 180,166.02 = 80,201.25 : x
  2. Step 2: Convert to fraction form
    130,531.41/180,166.02 = 80,201.25/x
  3. Step 3: Cross multiply
    130,531.41x = 180,166.02 × 80,201.25
  4. Step 4: Simplify right side
    130,531.41x = 14,449,540,011.53
  5. Step 5: Solve for x
    x = 14,449,540,011.53/130,531.41
  6. Step 6: Final answer
    x = 110,697.80

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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.