Home / 155,751.45-214,937.04-84,131.52

Finding the Fourth Proportional to 155,751.45, 214,937.04 and 84,131.52

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Solution

The fourth proportional to 155,751.45, 214,937.04 and 84,131.52 is: 116,101.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,751.45 : 214,937.04 = 84,131.52 : x
  2. Step 2: Convert to fraction form
    155,751.45/214,937.04 = 84,131.52/x
  3. Step 3: Cross multiply
    155,751.45x = 214,937.04 × 84,131.52
  4. Step 4: Simplify right side
    155,751.45x = 18,082,978,804.82
  5. Step 5: Solve for x
    x = 18,082,978,804.82/155,751.45
  6. Step 6: Final answer
    x = 116,101.52

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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.