Home / 205,162.98-283,172.15-120,307.38

Finding the Fourth Proportional to 205,162.98, 283,172.15 and 120,307.38

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Solution

The fourth proportional to 205,162.98, 283,172.15 and 120,307.38 is: 166,051.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,162.98 : 283,172.15 = 120,307.38 : x
  2. Step 2: Convert to fraction form
    205,162.98/283,172.15 = 120,307.38/x
  3. Step 3: Cross multiply
    205,162.98x = 283,172.15 × 120,307.38
  4. Step 4: Simplify right side
    205,162.98x = 34,067,699,455.47
  5. Step 5: Solve for x
    x = 34,067,699,455.47/205,162.98
  6. Step 6: Final answer
    x = 166,051.88

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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.