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Finding the Fourth Proportional to 162,003.60, 243,264.60 and 109,645.20

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Solution

The fourth proportional to 162,003.60, 243,264.60 and 109,645.20 is: 164,643.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,003.60 : 243,264.60 = 109,645.20 : x
  2. Step 2: Convert to fraction form
    162,003.60/243,264.60 = 109,645.20/x
  3. Step 3: Cross multiply
    162,003.60x = 243,264.60 × 109,645.20
  4. Step 4: Simplify right side
    162,003.60x = 26,672,795,719.92
  5. Step 5: Solve for x
    x = 26,672,795,719.92/162,003.60
  6. Step 6: Final answer
    x = 164,643.23

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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.