Home / 108,434.25-149,731.62-68,215.32

Finding the Fourth Proportional to 108,434.25, 149,731.62 and 68,215.32

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Solution

The fourth proportional to 108,434.25, 149,731.62 and 68,215.32 is: 94,195.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,434.25 : 149,731.62 = 68,215.32 : x
  2. Step 2: Convert to fraction form
    108,434.25/149,731.62 = 68,215.32/x
  3. Step 3: Cross multiply
    108,434.25x = 149,731.62 × 68,215.32
  4. Step 4: Simplify right side
    108,434.25x = 10,213,990,372.42
  5. Step 5: Solve for x
    x = 10,213,990,372.42/108,434.25
  6. Step 6: Final answer
    x = 94,195.24

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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.