Home / 145,523.82-200,820.96-81,861.60

Finding the Fourth Proportional to 145,523.82, 200,820.96 and 81,861.60

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Solution

The fourth proportional to 145,523.82, 200,820.96 and 81,861.60 is: 112,967.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,523.82 : 200,820.96 = 81,861.60 : x
  2. Step 2: Convert to fraction form
    145,523.82/200,820.96 = 81,861.60/x
  3. Step 3: Cross multiply
    145,523.82x = 200,820.96 × 81,861.60
  4. Step 4: Simplify right side
    145,523.82x = 16,439,525,099.14
  5. Step 5: Solve for x
    x = 16,439,525,099.14/145,523.82
  6. Step 6: Final answer
    x = 112,967.93

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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.