Home / 189,380.16-261,228.24-112,846.50

Finding the Fourth Proportional to 189,380.16, 261,228.24 and 112,846.50

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Solution

The fourth proportional to 189,380.16, 261,228.24 and 112,846.50 is: 155,658.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,380.16 : 261,228.24 = 112,846.50 : x
  2. Step 2: Convert to fraction form
    189,380.16/261,228.24 = 112,846.50/x
  3. Step 3: Cross multiply
    189,380.16x = 261,228.24 × 112,846.50
  4. Step 4: Simplify right side
    189,380.16x = 29,478,692,585.16
  5. Step 5: Solve for x
    x = 29,478,692,585.16/189,380.16
  6. Step 6: Final answer
    x = 155,658.82

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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.