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Finding the Fourth Proportional to 108,540.84, 162,617.94 and 66,400.32

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Solution

The fourth proportional to 108,540.84, 162,617.94 and 66,400.32 is: 99,482.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,540.84 : 162,617.94 = 66,400.32 : x
  2. Step 2: Convert to fraction form
    108,540.84/162,617.94 = 66,400.32/x
  3. Step 3: Cross multiply
    108,540.84x = 162,617.94 × 66,400.32
  4. Step 4: Simplify right side
    108,540.84x = 10,797,883,253.74
  5. Step 5: Solve for x
    x = 10,797,883,253.74/108,540.84
  6. Step 6: Final answer
    x = 99,482.22

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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.