Home / 189,701.24-261,784.49-103,658.31

Finding the Fourth Proportional to 189,701.24, 261,784.49 and 103,658.31

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Solution

The fourth proportional to 189,701.24, 261,784.49 and 103,658.31 is: 143,046.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,701.24 : 261,784.49 = 103,658.31 : x
  2. Step 2: Convert to fraction form
    189,701.24/261,784.49 = 103,658.31/x
  3. Step 3: Cross multiply
    189,701.24x = 261,784.49 × 103,658.31
  4. Step 4: Simplify right side
    189,701.24x = 27,136,137,299.32
  5. Step 5: Solve for x
    x = 27,136,137,299.32/189,701.24
  6. Step 6: Final answer
    x = 143,046.71

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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.