Home / 108,862.31-150,221.68-61,106.43

Finding the Fourth Proportional to 108,862.31, 150,221.68 and 61,106.43

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Solution

The fourth proportional to 108,862.31, 150,221.68 and 61,106.43 is: 84,322.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,862.31 : 150,221.68 = 61,106.43 : x
  2. Step 2: Convert to fraction form
    108,862.31/150,221.68 = 61,106.43/x
  3. Step 3: Cross multiply
    108,862.31x = 150,221.68 × 61,106.43
  4. Step 4: Simplify right side
    108,862.31x = 9,179,510,573.40
  5. Step 5: Solve for x
    x = 9,179,510,573.40/108,862.31
  6. Step 6: Final answer
    x = 84,322.21

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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.