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Finding the Fourth Proportional to 102,211.60, 141,051.80 and 57,499.60

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Solution

The fourth proportional to 102,211.60, 141,051.80 and 57,499.60 is: 79,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,211.60 : 141,051.80 = 57,499.60 : x
  2. Step 2: Convert to fraction form
    102,211.60/141,051.80 = 57,499.60/x
  3. Step 3: Cross multiply
    102,211.60x = 141,051.80 × 57,499.60
  4. Step 4: Simplify right side
    102,211.60x = 8,110,422,079.28
  5. Step 5: Solve for x
    x = 8,110,422,079.28/102,211.60
  6. Step 6: Final answer
    x = 79,349.33

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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.