Home / 201,629.20-302,444.66-81,688.49

Finding the Fourth Proportional to 201,629.20, 302,444.66 and 81,688.49

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Solution

The fourth proportional to 201,629.20, 302,444.66 and 81,688.49 is: 122,533.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,629.20 : 302,444.66 = 81,688.49 : x
  2. Step 2: Convert to fraction form
    201,629.20/302,444.66 = 81,688.49/x
  3. Step 3: Cross multiply
    201,629.20x = 302,444.66 × 81,688.49
  4. Step 4: Simplify right side
    201,629.20x = 24,706,247,583.96
  5. Step 5: Solve for x
    x = 24,706,247,583.96/201,629.20
  6. Step 6: Final answer
    x = 122,533.08

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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.