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Finding the Fourth Proportional to 108,853.76, 163,155.76 and 45,662.20

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Solution

The fourth proportional to 108,853.76, 163,155.76 and 45,662.20 is: 68,440.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,853.76 : 163,155.76 = 45,662.20 : x
  2. Step 2: Convert to fraction form
    108,853.76/163,155.76 = 45,662.20/x
  3. Step 3: Cross multiply
    108,853.76x = 163,155.76 × 45,662.20
  4. Step 4: Simplify right side
    108,853.76x = 7,450,050,944.27
  5. Step 5: Solve for x
    x = 7,450,050,944.27/108,853.76
  6. Step 6: Final answer
    x = 68,440.92

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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.