Home / 108,554.36-149,787.60-60,809.72

Finding the Fourth Proportional to 108,554.36, 149,787.60 and 60,809.72

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Solution

The fourth proportional to 108,554.36, 149,787.60 and 60,809.72 is: 83,907.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,554.36 : 149,787.60 = 60,809.72 : x
  2. Step 2: Convert to fraction form
    108,554.36/149,787.60 = 60,809.72/x
  3. Step 3: Cross multiply
    108,554.36x = 149,787.60 × 60,809.72
  4. Step 4: Simplify right side
    108,554.36x = 9,108,542,015.47
  5. Step 5: Solve for x
    x = 9,108,542,015.47/108,554.36
  6. Step 6: Final answer
    x = 83,907.66

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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.