Home / 108,539.84-162,616.44-66,399.32

Finding the Fourth Proportional to 108,539.84, 162,616.44 and 66,399.32

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Solution

The fourth proportional to 108,539.84, 162,616.44 and 66,399.32 is: 99,480.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,539.84 : 162,616.44 = 66,399.32 : x
  2. Step 2: Convert to fraction form
    108,539.84/162,616.44 = 66,399.32/x
  3. Step 3: Cross multiply
    108,539.84x = 162,616.44 × 66,399.32
  4. Step 4: Simplify right side
    108,539.84x = 10,797,621,036.82
  5. Step 5: Solve for x
    x = 10,797,621,036.82/108,539.84
  6. Step 6: Final answer
    x = 99,480.72

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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.