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Finding the Fourth Proportional to 108,335.64, 162,477.42 and 45,156.64

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Solution

The fourth proportional to 108,335.64, 162,477.42 and 45,156.64 is: 67,724.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,335.64 : 162,477.42 = 45,156.64 : x
  2. Step 2: Convert to fraction form
    108,335.64/162,477.42 = 45,156.64/x
  3. Step 3: Cross multiply
    108,335.64x = 162,477.42 × 45,156.64
  4. Step 4: Simplify right side
    108,335.64x = 7,336,934,363.07
  5. Step 5: Solve for x
    x = 7,336,934,363.07/108,335.64
  6. Step 6: Final answer
    x = 67,724.11

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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.