Home / 108,426.25-149,720.57-68,207.32

Finding the Fourth Proportional to 108,426.25, 149,720.57 and 68,207.32

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Solution

The fourth proportional to 108,426.25, 149,720.57 and 68,207.32 is: 94,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,426.25 : 149,720.57 = 68,207.32 : x
  2. Step 2: Convert to fraction form
    108,426.25/149,720.57 = 68,207.32/x
  3. Step 3: Cross multiply
    108,426.25x = 149,720.57 × 68,207.32
  4. Step 4: Simplify right side
    108,426.25x = 10,212,038,828.57
  5. Step 5: Solve for x
    x = 10,212,038,828.57/108,426.25
  6. Step 6: Final answer
    x = 94,184.19

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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.