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Finding the Fourth Proportional to 128,095.84, 176,775.24 and 80,351.20

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Solution

The fourth proportional to 128,095.84, 176,775.24 and 80,351.20 is: 110,886.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,095.84 : 176,775.24 = 80,351.20 : x
  2. Step 2: Convert to fraction form
    128,095.84/176,775.24 = 80,351.20/x
  3. Step 3: Cross multiply
    128,095.84x = 176,775.24 × 80,351.20
  4. Step 4: Simplify right side
    128,095.84x = 14,204,102,664.29
  5. Step 5: Solve for x
    x = 14,204,102,664.29/128,095.84
  6. Step 6: Final answer
    x = 110,886.53

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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.