Home / 155,540.78-214,712.49-104,583.08

Finding the Fourth Proportional to 155,540.78, 214,712.49 and 104,583.08

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Solution

The fourth proportional to 155,540.78, 214,712.49 and 104,583.08 is: 144,369.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,540.78 : 214,712.49 = 104,583.08 : x
  2. Step 2: Convert to fraction form
    155,540.78/214,712.49 = 104,583.08/x
  3. Step 3: Cross multiply
    155,540.78x = 214,712.49 × 104,583.08
  4. Step 4: Simplify right side
    155,540.78x = 22,455,293,518.67
  5. Step 5: Solve for x
    x = 22,455,293,518.67/155,540.78
  6. Step 6: Final answer
    x = 144,369.17

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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.