Home / 108,336.38-162,416.49-45,203.53

Finding the Fourth Proportional to 108,336.38, 162,416.49 and 45,203.53

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Solution

The fourth proportional to 108,336.38, 162,416.49 and 45,203.53 is: 67,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,336.38 : 162,416.49 = 45,203.53 : x
  2. Step 2: Convert to fraction form
    108,336.38/162,416.49 = 45,203.53/x
  3. Step 3: Cross multiply
    108,336.38x = 162,416.49 × 45,203.53
  4. Step 4: Simplify right side
    108,336.38x = 7,341,798,678.21
  5. Step 5: Solve for x
    x = 7,341,798,678.21/108,336.38
  6. Step 6: Final answer
    x = 67,768.54

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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.