Home / 161,800.62-242,678.25-68,284.50

Finding the Fourth Proportional to 161,800.62, 242,678.25 and 68,284.50

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Solution

The fourth proportional to 161,800.62, 242,678.25 and 68,284.50 is: 102,417.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,800.62 : 242,678.25 = 68,284.50 : x
  2. Step 2: Convert to fraction form
    161,800.62/242,678.25 = 68,284.50/x
  3. Step 3: Cross multiply
    161,800.62x = 242,678.25 × 68,284.50
  4. Step 4: Simplify right side
    161,800.62x = 16,571,162,962.13
  5. Step 5: Solve for x
    x = 16,571,162,962.13/161,800.62
  6. Step 6: Final answer
    x = 102,417.18

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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.