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Finding the Fourth Proportional to 112,087.90, 154,679.19 and 61,101.10

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Solution

The fourth proportional to 112,087.90, 154,679.19 and 61,101.10 is: 84,318.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,087.90 : 154,679.19 = 61,101.10 : x
  2. Step 2: Convert to fraction form
    112,087.90/154,679.19 = 61,101.10/x
  3. Step 3: Cross multiply
    112,087.90x = 154,679.19 × 61,101.10
  4. Step 4: Simplify right side
    112,087.90x = 9,451,068,656.11
  5. Step 5: Solve for x
    x = 9,451,068,656.11/112,087.90
  6. Step 6: Final answer
    x = 84,318.37

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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.