Home / 190,826.20-286,239.30-112,029.40

Finding the Fourth Proportional to 190,826.20, 286,239.30 and 112,029.40

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Solution

The fourth proportional to 190,826.20, 286,239.30 and 112,029.40 is: 168,044.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,826.20 : 286,239.30 = 112,029.40 : x
  2. Step 2: Convert to fraction form
    190,826.20/286,239.30 = 112,029.40/x
  3. Step 3: Cross multiply
    190,826.20x = 286,239.30 × 112,029.40
  4. Step 4: Simplify right side
    190,826.20x = 32,067,217,035.42
  5. Step 5: Solve for x
    x = 32,067,217,035.42/190,826.20
  6. Step 6: Final answer
    x = 168,044.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.