Home / 213,799.49-295,074.59-123,137.81

Finding the Fourth Proportional to 213,799.49, 295,074.59 and 123,137.81

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Solution

The fourth proportional to 213,799.49, 295,074.59 and 123,137.81 is: 169,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,799.49 : 295,074.59 = 123,137.81 : x
  2. Step 2: Convert to fraction form
    213,799.49/295,074.59 = 123,137.81/x
  3. Step 3: Cross multiply
    213,799.49x = 295,074.59 × 123,137.81
  4. Step 4: Simplify right side
    213,799.49x = 36,334,838,799.25
  5. Step 5: Solve for x
    x = 36,334,838,799.25/213,799.49
  6. Step 6: Final answer
    x = 169,948.20

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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.