Home / 161,783.30-242,636.06-82,856.90

Finding the Fourth Proportional to 161,783.30, 242,636.06 and 82,856.90

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Solution

The fourth proportional to 161,783.30, 242,636.06 and 82,856.90 is: 124,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,783.30 : 242,636.06 = 82,856.90 : x
  2. Step 2: Convert to fraction form
    161,783.30/242,636.06 = 82,856.90/x
  3. Step 3: Cross multiply
    161,783.30x = 242,636.06 × 82,856.90
  4. Step 4: Simplify right side
    161,783.30x = 20,104,071,759.81
  5. Step 5: Solve for x
    x = 20,104,071,759.81/161,783.30
  6. Step 6: Final answer
    x = 124,265.43

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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.