Home / 145,419.03-200,674.34-81,760.92

Finding the Fourth Proportional to 145,419.03, 200,674.34 and 81,760.92

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Solution

The fourth proportional to 145,419.03, 200,674.34 and 81,760.92 is: 112,827.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,419.03 : 200,674.34 = 81,760.92 : x
  2. Step 2: Convert to fraction form
    145,419.03/200,674.34 = 81,760.92/x
  3. Step 3: Cross multiply
    145,419.03x = 200,674.34 × 81,760.92
  4. Step 4: Simplify right side
    145,419.03x = 16,407,318,249.99
  5. Step 5: Solve for x
    x = 16,407,318,249.99/145,419.03
  6. Step 6: Final answer
    x = 112,827.86

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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.