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Finding the Fourth Proportional to 145,595.82, 218,394.94 and 45,753.78

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Solution

The fourth proportional to 145,595.82, 218,394.94 and 45,753.78 is: 68,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,595.82 : 218,394.94 = 45,753.78 : x
  2. Step 2: Convert to fraction form
    145,595.82/218,394.94 = 45,753.78/x
  3. Step 3: Cross multiply
    145,595.82x = 218,394.94 × 45,753.78
  4. Step 4: Simplify right side
    145,595.82x = 9,992,394,037.87
  5. Step 5: Solve for x
    x = 9,992,394,037.87/145,595.82
  6. Step 6: Final answer
    x = 68,631.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.