Home / 109,874.63-164,818.90-42,438.84

Finding the Fourth Proportional to 109,874.63, 164,818.90 and 42,438.84

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Solution

The fourth proportional to 109,874.63, 164,818.90 and 42,438.84 is: 63,660.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,874.63 : 164,818.90 = 42,438.84 : x
  2. Step 2: Convert to fraction form
    109,874.63/164,818.90 = 42,438.84/x
  3. Step 3: Cross multiply
    109,874.63x = 164,818.90 × 42,438.84
  4. Step 4: Simplify right side
    109,874.63x = 6,994,722,361.05
  5. Step 5: Solve for x
    x = 6,994,722,361.05/109,874.63
  6. Step 6: Final answer
    x = 63,660.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.