Home / 108,138.48-149,208.29-62,793.00

Finding the Fourth Proportional to 108,138.48, 149,208.29 and 62,793.00

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Solution

The fourth proportional to 108,138.48, 149,208.29 and 62,793.00 is: 86,641.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,138.48 : 149,208.29 = 62,793.00 : x
  2. Step 2: Convert to fraction form
    108,138.48/149,208.29 = 62,793.00/x
  3. Step 3: Cross multiply
    108,138.48x = 149,208.29 × 62,793.00
  4. Step 4: Simplify right side
    108,138.48x = 9,369,235,880.84
  5. Step 5: Solve for x
    x = 9,369,235,880.84/108,138.48
  6. Step 6: Final answer
    x = 86,641.09

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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.