Home / 145,573.14-200,890.51-81,910.95

Finding the Fourth Proportional to 145,573.14, 200,890.51 and 81,910.95

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Solution

The fourth proportional to 145,573.14, 200,890.51 and 81,910.95 is: 113,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,573.14 : 200,890.51 = 81,910.95 : x
  2. Step 2: Convert to fraction form
    145,573.14/200,890.51 = 81,910.95/x
  3. Step 3: Cross multiply
    145,573.14x = 200,890.51 × 81,910.95
  4. Step 4: Simplify right side
    145,573.14x = 16,455,132,520.08
  5. Step 5: Solve for x
    x = 16,455,132,520.08/145,573.14
  6. Step 6: Final answer
    x = 113,036.87

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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.