Home / 145,712.89-201,083.76-82,049.32

Finding the Fourth Proportional to 145,712.89, 201,083.76 and 82,049.32

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Solution

The fourth proportional to 145,712.89, 201,083.76 and 82,049.32 is: 113,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,712.89 : 201,083.76 = 82,049.32 : x
  2. Step 2: Convert to fraction form
    145,712.89/201,083.76 = 82,049.32/x
  3. Step 3: Cross multiply
    145,712.89x = 201,083.76 × 82,049.32
  4. Step 4: Simplify right side
    145,712.89x = 16,498,785,771.04
  5. Step 5: Solve for x
    x = 16,498,785,771.04/145,712.89
  6. Step 6: Final answer
    x = 113,228.05

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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.