Home / 145,410.22-200,648.64-80,863.30

Finding the Fourth Proportional to 145,410.22, 200,648.64 and 80,863.30

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Solution

The fourth proportional to 145,410.22, 200,648.64 and 80,863.30 is: 111,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,410.22 : 200,648.64 = 80,863.30 : x
  2. Step 2: Convert to fraction form
    145,410.22/200,648.64 = 80,863.30/x
  3. Step 3: Cross multiply
    145,410.22x = 200,648.64 × 80,863.30
  4. Step 4: Simplify right side
    145,410.22x = 16,225,111,170.91
  5. Step 5: Solve for x
    x = 16,225,111,170.91/145,410.22
  6. Step 6: Final answer
    x = 111,581.64

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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.