Home / 145,163.34-200,310.57-81,500.58

Finding the Fourth Proportional to 145,163.34, 200,310.57 and 81,500.58

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Solution

The fourth proportional to 145,163.34, 200,310.57 and 81,500.58 is: 112,462.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,163.34 : 200,310.57 = 81,500.58 : x
  2. Step 2: Convert to fraction form
    145,163.34/200,310.57 = 81,500.58/x
  3. Step 3: Cross multiply
    145,163.34x = 200,310.57 × 81,500.58
  4. Step 4: Simplify right side
    145,163.34x = 16,325,427,635.13
  5. Step 5: Solve for x
    x = 16,325,427,635.13/145,163.34
  6. Step 6: Final answer
    x = 112,462.47

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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.