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Finding the Fourth Proportional to 108,051.80, 149,051.58 and 63,331.16

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Solution

The fourth proportional to 108,051.80, 149,051.58 and 63,331.16 is: 87,361.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,051.80 : 149,051.58 = 63,331.16 : x
  2. Step 2: Convert to fraction form
    108,051.80/149,051.58 = 63,331.16/x
  3. Step 3: Cross multiply
    108,051.80x = 149,051.58 × 63,331.16
  4. Step 4: Simplify right side
    108,051.80x = 9,439,609,461.23
  5. Step 5: Solve for x
    x = 9,439,609,461.23/108,051.80
  6. Step 6: Final answer
    x = 87,361.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.