Home / 108,772.11-149,825.84-76,886.19

Finding the Fourth Proportional to 108,772.11, 149,825.84 and 76,886.19

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Solution

The fourth proportional to 108,772.11, 149,825.84 and 76,886.19 is: 105,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,772.11 : 149,825.84 = 76,886.19 : x
  2. Step 2: Convert to fraction form
    108,772.11/149,825.84 = 76,886.19/x
  3. Step 3: Cross multiply
    108,772.11x = 149,825.84 × 76,886.19
  4. Step 4: Simplify right side
    108,772.11x = 11,519,537,616.72
  5. Step 5: Solve for x
    x = 11,519,537,616.72/108,772.11
  6. Step 6: Final answer
    x = 105,905.25

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Double scale
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1.5x scale

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.