Home / 162,107.20-242,942.10-115,305.40

Finding the Fourth Proportional to 162,107.20, 242,942.10 and 115,305.40

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Solution

The fourth proportional to 162,107.20, 242,942.10 and 115,305.40 is: 172,802.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,107.20 : 242,942.10 = 115,305.40 : x
  2. Step 2: Convert to fraction form
    162,107.20/242,942.10 = 115,305.40/x
  3. Step 3: Cross multiply
    162,107.20x = 242,942.10 × 115,305.40
  4. Step 4: Simplify right side
    162,107.20x = 28,012,536,017.34
  5. Step 5: Solve for x
    x = 28,012,536,017.34/162,107.20
  6. Step 6: Final answer
    x = 172,802.54

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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.