Home / 137,022.99-189,067.54-76,574.31

Finding the Fourth Proportional to 137,022.99, 189,067.54 and 76,574.31

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Solution

The fourth proportional to 137,022.99, 189,067.54 and 76,574.31 is: 105,659.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,022.99 : 189,067.54 = 76,574.31 : x
  2. Step 2: Convert to fraction form
    137,022.99/189,067.54 = 76,574.31/x
  3. Step 3: Cross multiply
    137,022.99x = 189,067.54 × 76,574.31
  4. Step 4: Simplify right side
    137,022.99x = 14,477,716,418.90
  5. Step 5: Solve for x
    x = 14,477,716,418.90/137,022.99
  6. Step 6: Final answer
    x = 105,659.03

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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.