Home / 145,603.36-200,899.39-81,917.92

Finding the Fourth Proportional to 145,603.36, 200,899.39 and 81,917.92

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Solution

The fourth proportional to 145,603.36, 200,899.39 and 81,917.92 is: 113,028.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,603.36 : 200,899.39 = 81,917.92 : x
  2. Step 2: Convert to fraction form
    145,603.36/200,899.39 = 81,917.92/x
  3. Step 3: Cross multiply
    145,603.36x = 200,899.39 × 81,917.92
  4. Step 4: Simplify right side
    145,603.36x = 16,457,258,743.98
  5. Step 5: Solve for x
    x = 16,457,258,743.98/145,603.36
  6. Step 6: Final answer
    x = 113,028.02

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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.