Home / 189,429.12-261,414-104,544.36

Finding the Fourth Proportional to 189,429.12, 261,414 and 104,544.36

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Solution

The fourth proportional to 189,429.12, 261,414 and 104,544.36 is: 144,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,429.12 : 261,414 = 104,544.36 : x
  2. Step 2: Convert to fraction form
    189,429.12/261,414 = 104,544.36/x
  3. Step 3: Cross multiply
    189,429.12x = 261,414 × 104,544.36
  4. Step 4: Simplify right side
    189,429.12x = 27,329,359,325.04
  5. Step 5: Solve for x
    x = 27,329,359,325.04/189,429.12
  6. Step 6: Final answer
    x = 144,272.22

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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.