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Finding the Fourth Proportional to 111,676.60, 154,111.98 and 61,374.52

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Solution

The fourth proportional to 111,676.60, 154,111.98 and 61,374.52 is: 84,695.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,676.60 : 154,111.98 = 61,374.52 : x
  2. Step 2: Convert to fraction form
    111,676.60/154,111.98 = 61,374.52/x
  3. Step 3: Cross multiply
    111,676.60x = 154,111.98 × 61,374.52
  4. Step 4: Simplify right side
    111,676.60x = 9,458,548,798.75
  5. Step 5: Solve for x
    x = 9,458,548,798.75/111,676.60
  6. Step 6: Final answer
    x = 84,695.89

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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.