Home / 145,481.83-200,762.99-81,819.62

Finding the Fourth Proportional to 145,481.83, 200,762.99 and 81,819.62

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Solution

The fourth proportional to 145,481.83, 200,762.99 and 81,819.62 is: 112,909.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,481.83 : 200,762.99 = 81,819.62 : x
  2. Step 2: Convert to fraction form
    145,481.83/200,762.99 = 81,819.62/x
  3. Step 3: Cross multiply
    145,481.83x = 200,762.99 × 81,819.62
  4. Step 4: Simplify right side
    145,481.83x = 16,426,351,644.67
  5. Step 5: Solve for x
    x = 16,426,351,644.67/145,481.83
  6. Step 6: Final answer
    x = 112,909.99

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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.