Home / 108,979.40-150,396-61,232.60

Finding the Fourth Proportional to 108,979.40, 150,396 and 61,232.60

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Solution

The fourth proportional to 108,979.40, 150,396 and 61,232.60 is: 84,503.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,979.40 : 150,396 = 61,232.60 : x
  2. Step 2: Convert to fraction form
    108,979.40/150,396 = 61,232.60/x
  3. Step 3: Cross multiply
    108,979.40x = 150,396 × 61,232.60
  4. Step 4: Simplify right side
    108,979.40x = 9,209,138,109.60
  5. Step 5: Solve for x
    x = 9,209,138,109.60/108,979.40
  6. Step 6: Final answer
    x = 84,503.48

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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.