Home / 108,166.78-149,173.20-90,077.41

Finding the Fourth Proportional to 108,166.78, 149,173.20 and 90,077.41

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Solution

The fourth proportional to 108,166.78, 149,173.20 and 90,077.41 is: 124,226.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,166.78 : 149,173.20 = 90,077.41 : x
  2. Step 2: Convert to fraction form
    108,166.78/149,173.20 = 90,077.41/x
  3. Step 3: Cross multiply
    108,166.78x = 149,173.20 × 90,077.41
  4. Step 4: Simplify right side
    108,166.78x = 13,437,134,591.44
  5. Step 5: Solve for x
    x = 13,437,134,591.44/108,166.78
  6. Step 6: Final answer
    x = 124,226.07

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1.5x scale

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.