Home / 145,142.91-200,310.44-84,742.83

Finding the Fourth Proportional to 145,142.91, 200,310.44 and 84,742.83

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Solution

The fourth proportional to 145,142.91, 200,310.44 and 84,742.83 is: 116,952.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,142.91 : 200,310.44 = 84,742.83 : x
  2. Step 2: Convert to fraction form
    145,142.91/200,310.44 = 84,742.83/x
  3. Step 3: Cross multiply
    145,142.91x = 200,310.44 × 84,742.83
  4. Step 4: Simplify right side
    145,142.91x = 16,974,873,140.43
  5. Step 5: Solve for x
    x = 16,974,873,140.43/145,142.91
  6. Step 6: Final answer
    x = 116,952.82

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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.