Home / 108,429.63-149,648.64-62,480.35

Finding the Fourth Proportional to 108,429.63, 149,648.64 and 62,480.35

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Solution

The fourth proportional to 108,429.63, 149,648.64 and 62,480.35 is: 86,231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,429.63 : 149,648.64 = 62,480.35 : x
  2. Step 2: Convert to fraction form
    108,429.63/149,648.64 = 62,480.35/x
  3. Step 3: Cross multiply
    108,429.63x = 149,648.64 × 62,480.35
  4. Step 4: Simplify right side
    108,429.63x = 9,350,099,404.22
  5. Step 5: Solve for x
    x = 9,350,099,404.22/108,429.63
  6. Step 6: Final answer
    x = 86,231.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.