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Finding the Fourth Proportional to 108,688.80, 162,858.24 and 67,048.32

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Solution

The fourth proportional to 108,688.80, 162,858.24 and 67,048.32 is: 100,464.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,688.80 : 162,858.24 = 67,048.32 : x
  2. Step 2: Convert to fraction form
    108,688.80/162,858.24 = 67,048.32/x
  3. Step 3: Cross multiply
    108,688.80x = 162,858.24 × 67,048.32
  4. Step 4: Simplify right side
    108,688.80x = 10,919,371,390.16
  5. Step 5: Solve for x
    x = 10,919,371,390.16/108,688.80
  6. Step 6: Final answer
    x = 100,464.55

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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.