Home / 100,442.20-150,492.98-66,684.60

Finding the Fourth Proportional to 100,442.20, 150,492.98 and 66,684.60

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Solution

The fourth proportional to 100,442.20, 150,492.98 and 66,684.60 is: 99,913.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,442.20 : 150,492.98 = 66,684.60 : x
  2. Step 2: Convert to fraction form
    100,442.20/150,492.98 = 66,684.60/x
  3. Step 3: Cross multiply
    100,442.20x = 150,492.98 × 66,684.60
  4. Step 4: Simplify right side
    100,442.20x = 10,035,564,174.11
  5. Step 5: Solve for x
    x = 10,035,564,174.11/100,442.20
  6. Step 6: Final answer
    x = 99,913.82

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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.