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Finding the Fourth Proportional to 107,803.74, 147,691.65 and 103,763.41

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Solution

The fourth proportional to 107,803.74, 147,691.65 and 103,763.41 is: 142,156.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,803.74 : 147,691.65 = 103,763.41 : x
  2. Step 2: Convert to fraction form
    107,803.74/147,691.65 = 103,763.41/x
  3. Step 3: Cross multiply
    107,803.74x = 147,691.65 × 103,763.41
  4. Step 4: Simplify right side
    107,803.74x = 15,324,989,232.53
  5. Step 5: Solve for x
    x = 15,324,989,232.53/107,803.74
  6. Step 6: Final answer
    x = 142,156.38

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