Home / 189,410.39-261,387.77-103,370.03

Finding the Fourth Proportional to 189,410.39, 261,387.77 and 103,370.03

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Solution

The fourth proportional to 189,410.39, 261,387.77 and 103,370.03 is: 142,651.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,410.39 : 261,387.77 = 103,370.03 : x
  2. Step 2: Convert to fraction form
    189,410.39/261,387.77 = 103,370.03/x
  3. Step 3: Cross multiply
    189,410.39x = 261,387.77 × 103,370.03
  4. Step 4: Simplify right side
    189,410.39x = 27,019,661,626.53
  5. Step 5: Solve for x
    x = 27,019,661,626.53/189,410.39
  6. Step 6: Final answer
    x = 142,651.42

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1.5x scale

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.