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Finding the Fourth Proportional to 108,154, 149,252.16 and 60,407.36

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Solution

The fourth proportional to 108,154, 149,252.16 and 60,407.36 is: 83,361.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,154 : 149,252.16 = 60,407.36 : x
  2. Step 2: Convert to fraction form
    108,154/149,252.16 = 60,407.36/x
  3. Step 3: Cross multiply
    108,154x = 149,252.16 × 60,407.36
  4. Step 4: Simplify right side
    108,154x = 9,015,928,959.90
  5. Step 5: Solve for x
    x = 9,015,928,959.90/108,154
  6. Step 6: Final answer
    x = 83,361.96

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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.