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Finding the Fourth Proportional to 102,168.24, 141,004.62 and 61,881

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Solution

The fourth proportional to 102,168.24, 141,004.62 and 61,881 is: 85,403.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,168.24 : 141,004.62 = 61,881 : x
  2. Step 2: Convert to fraction form
    102,168.24/141,004.62 = 61,881/x
  3. Step 3: Cross multiply
    102,168.24x = 141,004.62 × 61,881
  4. Step 4: Simplify right side
    102,168.24x = 8,725,506,890.22
  5. Step 5: Solve for x
    x = 8,725,506,890.22/102,168.24
  6. Step 6: Final answer
    x = 85,403.32

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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.