Home / 161,607.25-242,143.57-82,612.81

Finding the Fourth Proportional to 161,607.25, 242,143.57 and 82,612.81

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Solution

The fourth proportional to 161,607.25, 242,143.57 and 82,612.81 is: 123,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,607.25 : 242,143.57 = 82,612.81 : x
  2. Step 2: Convert to fraction form
    161,607.25/242,143.57 = 82,612.81/x
  3. Step 3: Cross multiply
    161,607.25x = 242,143.57 × 82,612.81
  4. Step 4: Simplify right side
    161,607.25x = 20,004,159,117.35
  5. Step 5: Solve for x
    x = 20,004,159,117.35/161,607.25
  6. Step 6: Final answer
    x = 123,782.56

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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.