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Finding the Fourth Proportional to 162,314.10, 243,305.55 and 109,728.90

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Solution

The fourth proportional to 162,314.10, 243,305.55 and 109,728.90 is: 164,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,314.10 : 243,305.55 = 109,728.90 : x
  2. Step 2: Convert to fraction form
    162,314.10/243,305.55 = 109,728.90/x
  3. Step 3: Cross multiply
    162,314.10x = 243,305.55 × 109,728.90
  4. Step 4: Simplify right side
    162,314.10x = 26,697,650,365.40
  5. Step 5: Solve for x
    x = 26,697,650,365.40/162,314.10
  6. Step 6: Final answer
    x = 164,481.40

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1.5x scale

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.