Home / 145,570.46-200,891.16-81,910.52

Finding the Fourth Proportional to 145,570.46, 200,891.16 and 81,910.52

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Solution

The fourth proportional to 145,570.46, 200,891.16 and 81,910.52 is: 113,038.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,570.46 : 200,891.16 = 81,910.52 : x
  2. Step 2: Convert to fraction form
    145,570.46/200,891.16 = 81,910.52/x
  3. Step 3: Cross multiply
    145,570.46x = 200,891.16 × 81,910.52
  4. Step 4: Simplify right side
    145,570.46x = 16,455,099,379.00
  5. Step 5: Solve for x
    x = 16,455,099,379.00/145,570.46
  6. Step 6: Final answer
    x = 113,038.73

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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.