Home / 102,973.80-142,079.32-62,687.10

Finding the Fourth Proportional to 102,973.80, 142,079.32 and 62,687.10

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Solution

The fourth proportional to 102,973.80, 142,079.32 and 62,687.10 is: 86,493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,973.80 : 142,079.32 = 62,687.10 : x
  2. Step 2: Convert to fraction form
    102,973.80/142,079.32 = 62,687.10/x
  3. Step 3: Cross multiply
    102,973.80x = 142,079.32 × 62,687.10
  4. Step 4: Simplify right side
    102,973.80x = 8,906,540,540.77
  5. Step 5: Solve for x
    x = 8,906,540,540.77/102,973.80
  6. Step 6: Final answer
    x = 86,493.27

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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.