Home / 145,755.36-201,143.52-82,087.20

Finding the Fourth Proportional to 145,755.36, 201,143.52 and 82,087.20

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Solution

The fourth proportional to 145,755.36, 201,143.52 and 82,087.20 is: 113,280.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,755.36 : 201,143.52 = 82,087.20 : x
  2. Step 2: Convert to fraction form
    145,755.36/201,143.52 = 82,087.20/x
  3. Step 3: Cross multiply
    145,755.36x = 201,143.52 × 82,087.20
  4. Step 4: Simplify right side
    145,755.36x = 16,511,308,354.94
  5. Step 5: Solve for x
    x = 16,511,308,354.94/145,755.36
  6. Step 6: Final answer
    x = 113,280.97

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1.5x scale

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.