Home / 145,183.83-200,348.49-81,524.31

Finding the Fourth Proportional to 145,183.83, 200,348.49 and 81,524.31

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Solution

The fourth proportional to 145,183.83, 200,348.49 and 81,524.31 is: 112,500.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,183.83 : 200,348.49 = 81,524.31 : x
  2. Step 2: Convert to fraction form
    145,183.83/200,348.49 = 81,524.31/x
  3. Step 3: Cross multiply
    145,183.83x = 200,348.49 × 81,524.31
  4. Step 4: Simplify right side
    145,183.83x = 16,333,272,406.79
  5. Step 5: Solve for x
    x = 16,333,272,406.79/145,183.83
  6. Step 6: Final answer
    x = 112,500.63

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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.