Home / 108,285.39-162,319-45,140.44

Finding the Fourth Proportional to 108,285.39, 162,319 and 45,140.44

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Solution

The fourth proportional to 108,285.39, 162,319 and 45,140.44 is: 67,665.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,285.39 : 162,319 = 45,140.44 : x
  2. Step 2: Convert to fraction form
    108,285.39/162,319 = 45,140.44/x
  3. Step 3: Cross multiply
    108,285.39x = 162,319 × 45,140.44
  4. Step 4: Simplify right side
    108,285.39x = 7,327,151,080.36
  5. Step 5: Solve for x
    x = 7,327,151,080.36/108,285.39
  6. Step 6: Final answer
    x = 67,665.19

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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.