Home / 145,329.20-200,552.49-81,677.78

Finding the Fourth Proportional to 145,329.20, 200,552.49 and 81,677.78

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Solution

The fourth proportional to 145,329.20, 200,552.49 and 81,677.78 is: 112,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,329.20 : 200,552.49 = 81,677.78 : x
  2. Step 2: Convert to fraction form
    145,329.20/200,552.49 = 81,677.78/x
  3. Step 3: Cross multiply
    145,329.20x = 200,552.49 × 81,677.78
  4. Step 4: Simplify right side
    145,329.20x = 16,380,682,156.67
  5. Step 5: Solve for x
    x = 16,380,682,156.67/145,329.20
  6. Step 6: Final answer
    x = 112,714.32

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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.