Home / 109,908.20-164,868.88-42,440.60

Finding the Fourth Proportional to 109,908.20, 164,868.88 and 42,440.60

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Solution

The fourth proportional to 109,908.20, 164,868.88 and 42,440.60 is: 63,663.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,908.20 : 164,868.88 = 42,440.60 : x
  2. Step 2: Convert to fraction form
    109,908.20/164,868.88 = 42,440.60/x
  3. Step 3: Cross multiply
    109,908.20x = 164,868.88 × 42,440.60
  4. Step 4: Simplify right side
    109,908.20x = 6,997,134,188.53
  5. Step 5: Solve for x
    x = 6,997,134,188.53/109,908.20
  6. Step 6: Final answer
    x = 63,663.44

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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.