Home / 189,710.52-261,826.47-109,136.58

Finding the Fourth Proportional to 189,710.52, 261,826.47 and 109,136.58

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Solution

The fourth proportional to 189,710.52, 261,826.47 and 109,136.58 is: 150,623.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,710.52 : 261,826.47 = 109,136.58 : x
  2. Step 2: Convert to fraction form
    189,710.52/261,826.47 = 109,136.58/x
  3. Step 3: Cross multiply
    189,710.52x = 261,826.47 × 109,136.58
  4. Step 4: Simplify right side
    189,710.52x = 28,574,845,489.27
  5. Step 5: Solve for x
    x = 28,574,845,489.27/189,710.52
  6. Step 6: Final answer
    x = 150,623.41

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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.