Home / 108,869.76-150,227.36-61,112.64

Finding the Fourth Proportional to 108,869.76, 150,227.36 and 61,112.64

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Solution

The fourth proportional to 108,869.76, 150,227.36 and 61,112.64 is: 84,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,869.76 : 150,227.36 = 61,112.64 : x
  2. Step 2: Convert to fraction form
    108,869.76/150,227.36 = 61,112.64/x
  3. Step 3: Cross multiply
    108,869.76x = 150,227.36 × 61,112.64
  4. Step 4: Simplify right side
    108,869.76x = 9,180,790,569.83
  5. Step 5: Solve for x
    x = 9,180,790,569.83/108,869.76
  6. Step 6: Final answer
    x = 84,328.20

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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.