Home / 108,434.80-162,644.10-45,238.60

Finding the Fourth Proportional to 108,434.80, 162,644.10 and 45,238.60

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Solution

The fourth proportional to 108,434.80, 162,644.10 and 45,238.60 is: 67,854.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,434.80 : 162,644.10 = 45,238.60 : x
  2. Step 2: Convert to fraction form
    108,434.80/162,644.10 = 45,238.60/x
  3. Step 3: Cross multiply
    108,434.80x = 162,644.10 × 45,238.60
  4. Step 4: Simplify right side
    108,434.80x = 7,357,791,382.26
  5. Step 5: Solve for x
    x = 7,357,791,382.26/108,434.80
  6. Step 6: Final answer
    x = 67,854.52

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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.