Home / 145,197.75-200,372.91-81,535.59

Finding the Fourth Proportional to 145,197.75, 200,372.91 and 81,535.59

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Solution

The fourth proportional to 145,197.75, 200,372.91 and 81,535.59 is: 112,519.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,197.75 : 200,372.91 = 81,535.59 : x
  2. Step 2: Convert to fraction form
    145,197.75/200,372.91 = 81,535.59/x
  3. Step 3: Cross multiply
    145,197.75x = 200,372.91 × 81,535.59
  4. Step 4: Simplify right side
    145,197.75x = 16,337,523,436.87
  5. Step 5: Solve for x
    x = 16,337,523,436.87/145,197.75
  6. Step 6: Final answer
    x = 112,519.12

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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.