Home / 108,168.29-149,175.27-90,078.90

Finding the Fourth Proportional to 108,168.29, 149,175.27 and 90,078.90

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Solution

The fourth proportional to 108,168.29, 149,175.27 and 90,078.90 is: 124,228.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,168.29 : 149,175.27 = 90,078.90 : x
  2. Step 2: Convert to fraction form
    108,168.29/149,175.27 = 90,078.90/x
  3. Step 3: Cross multiply
    108,168.29x = 149,175.27 × 90,078.90
  4. Step 4: Simplify right side
    108,168.29x = 13,437,544,228.80
  5. Step 5: Solve for x
    x = 13,437,544,228.80/108,168.29
  6. Step 6: Final answer
    x = 124,228.13

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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.