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Finding the Fourth Proportional to 128,026.94, 176,760.40 and 114,575.07

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Solution

The fourth proportional to 128,026.94, 176,760.40 and 114,575.07 is: 158,188.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,026.94 : 176,760.40 = 114,575.07 : x
  2. Step 2: Convert to fraction form
    128,026.94/176,760.40 = 114,575.07/x
  3. Step 3: Cross multiply
    128,026.94x = 176,760.40 × 114,575.07
  4. Step 4: Simplify right side
    128,026.94x = 20,252,335,125.50
  5. Step 5: Solve for x
    x = 20,252,335,125.50/128,026.94
  6. Step 6: Final answer
    x = 158,188.07

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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.