Home / 108,639.08-162,959.34-42,086.60

Finding the Fourth Proportional to 108,639.08, 162,959.34 and 42,086.60

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Solution

The fourth proportional to 108,639.08, 162,959.34 and 42,086.60 is: 63,130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,639.08 : 162,959.34 = 42,086.60 : x
  2. Step 2: Convert to fraction form
    108,639.08/162,959.34 = 42,086.60/x
  3. Step 3: Cross multiply
    108,639.08x = 162,959.34 × 42,086.60
  4. Step 4: Simplify right side
    108,639.08x = 6,858,404,558.84
  5. Step 5: Solve for x
    x = 6,858,404,558.84/108,639.08
  6. Step 6: Final answer
    x = 63,130.18

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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.