Home / 108,989.13-150,377.27-63,638.25

Finding the Fourth Proportional to 108,989.13, 150,377.27 and 63,638.25

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Solution

The fourth proportional to 108,989.13, 150,377.27 and 63,638.25 is: 87,804.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,989.13 : 150,377.27 = 63,638.25 : x
  2. Step 2: Convert to fraction form
    108,989.13/150,377.27 = 63,638.25/x
  3. Step 3: Cross multiply
    108,989.13x = 150,377.27 × 63,638.25
  4. Step 4: Simplify right side
    108,989.13x = 9,569,746,302.58
  5. Step 5: Solve for x
    x = 9,569,746,302.58/108,989.13
  6. Step 6: Final answer
    x = 87,804.59

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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.