Home / 74,787.90-102,997.35-73,154.94

Finding the Fourth Proportional to 74,787.90, 102,997.35 and 73,154.94

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Solution

The fourth proportional to 74,787.90, 102,997.35 and 73,154.94 is: 100,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,787.90 : 102,997.35 = 73,154.94 : x
  2. Step 2: Convert to fraction form
    74,787.90/102,997.35 = 73,154.94/x
  3. Step 3: Cross multiply
    74,787.90x = 102,997.35 × 73,154.94
  4. Step 4: Simplify right side
    74,787.90x = 7,534,764,959.41
  5. Step 5: Solve for x
    x = 7,534,764,959.41/74,787.90
  6. Step 6: Final answer
    x = 100,748.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.