Home / 145,202.92-200,358.37-81,528.41

Finding the Fourth Proportional to 145,202.92, 200,358.37 and 81,528.41

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Solution

The fourth proportional to 145,202.92, 200,358.37 and 81,528.41 is: 112,497.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,202.92 : 200,358.37 = 81,528.41 : x
  2. Step 2: Convert to fraction form
    145,202.92/200,358.37 = 81,528.41/x
  3. Step 3: Cross multiply
    145,202.92x = 200,358.37 × 81,528.41
  4. Step 4: Simplify right side
    145,202.92x = 16,334,899,336.29
  5. Step 5: Solve for x
    x = 16,334,899,336.29/145,202.92
  6. Step 6: Final answer
    x = 112,497.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.