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Finding the Fourth Proportional to 93,818.66, 128,698.77 and 88,734.29

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Solution

The fourth proportional to 93,818.66, 128,698.77 and 88,734.29 is: 121,724.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,818.66 : 128,698.77 = 88,734.29 : x
  2. Step 2: Convert to fraction form
    93,818.66/128,698.77 = 88,734.29/x
  3. Step 3: Cross multiply
    93,818.66x = 128,698.77 × 88,734.29
  4. Step 4: Simplify right side
    93,818.66x = 11,419,993,669.08
  5. Step 5: Solve for x
    x = 11,419,993,669.08/93,818.66
  6. Step 6: Final answer
    x = 121,724.12

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.