Home / 108,541.98-149,787.93-66,100.51

Finding the Fourth Proportional to 108,541.98, 149,787.93 and 66,100.51

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Solution

The fourth proportional to 108,541.98, 149,787.93 and 66,100.51 is: 91,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,541.98 : 149,787.93 = 66,100.51 : x
  2. Step 2: Convert to fraction form
    108,541.98/149,787.93 = 66,100.51/x
  3. Step 3: Cross multiply
    108,541.98x = 149,787.93 × 66,100.51
  4. Step 4: Simplify right side
    108,541.98x = 9,901,058,317.62
  5. Step 5: Solve for x
    x = 9,901,058,317.62/108,541.98
  6. Step 6: Final answer
    x = 91,218.70

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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.