Home / 112,605.93-155,394.82-61,618.09

Finding the Fourth Proportional to 112,605.93, 155,394.82 and 61,618.09

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Solution

The fourth proportional to 112,605.93, 155,394.82 and 61,618.09 is: 85,032.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,605.93 : 155,394.82 = 61,618.09 : x
  2. Step 2: Convert to fraction form
    112,605.93/155,394.82 = 61,618.09/x
  3. Step 3: Cross multiply
    112,605.93x = 155,394.82 × 61,618.09
  4. Step 4: Simplify right side
    112,605.93x = 9,575,131,696.20
  5. Step 5: Solve for x
    x = 9,575,131,696.20/112,605.93
  6. Step 6: Final answer
    x = 85,032.22

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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.