Home / 145,092.58-200,247.30-81,433.86

Finding the Fourth Proportional to 145,092.58, 200,247.30 and 81,433.86

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Solution

The fourth proportional to 145,092.58, 200,247.30 and 81,433.86 is: 112,389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,092.58 : 200,247.30 = 81,433.86 : x
  2. Step 2: Convert to fraction form
    145,092.58/200,247.30 = 81,433.86/x
  3. Step 3: Cross multiply
    145,092.58x = 200,247.30 × 81,433.86
  4. Step 4: Simplify right side
    145,092.58x = 16,306,910,593.58
  5. Step 5: Solve for x
    x = 16,306,910,593.58/145,092.58
  6. Step 6: Final answer
    x = 112,389.69

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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.