Home / 145,562.45-200,876.22-81,900.23

Finding the Fourth Proportional to 145,562.45, 200,876.22 and 81,900.23

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Solution

The fourth proportional to 145,562.45, 200,876.22 and 81,900.23 is: 113,022.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,562.45 : 200,876.22 = 81,900.23 : x
  2. Step 2: Convert to fraction form
    145,562.45/200,876.22 = 81,900.23/x
  3. Step 3: Cross multiply
    145,562.45x = 200,876.22 × 81,900.23
  4. Step 4: Simplify right side
    145,562.45x = 16,451,807,615.15
  5. Step 5: Solve for x
    x = 16,451,807,615.15/145,562.45
  6. Step 6: Final answer
    x = 113,022.34

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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.