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Finding the Fourth Proportional to 163,774.53, 245,661.79 and 45,445.90

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Solution

The fourth proportional to 163,774.53, 245,661.79 and 45,445.90 is: 68,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,774.53 : 245,661.79 = 45,445.90 : x
  2. Step 2: Convert to fraction form
    163,774.53/245,661.79 = 45,445.90/x
  3. Step 3: Cross multiply
    163,774.53x = 245,661.79 × 45,445.90
  4. Step 4: Simplify right side
    163,774.53x = 11,164,321,142.16
  5. Step 5: Solve for x
    x = 11,164,321,142.16/163,774.53
  6. Step 6: Final answer
    x = 68,168.85

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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.