Home / 213,085.57-319,240.72-124,069.21

Finding the Fourth Proportional to 213,085.57, 319,240.72 and 124,069.21

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Solution

The fourth proportional to 213,085.57, 319,240.72 and 124,069.21 is: 185,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,085.57 : 319,240.72 = 124,069.21 : x
  2. Step 2: Convert to fraction form
    213,085.57/319,240.72 = 124,069.21/x
  3. Step 3: Cross multiply
    213,085.57x = 319,240.72 × 124,069.21
  4. Step 4: Simplify right side
    213,085.57x = 39,607,943,930.23
  5. Step 5: Solve for x
    x = 39,607,943,930.23/213,085.57
  6. Step 6: Final answer
    x = 185,878.11

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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.