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Finding the Fourth Proportional to 145,776.76, 218,672.97 and 45,944.77

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Solution

The fourth proportional to 145,776.76, 218,672.97 and 45,944.77 is: 68,919.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,776.76 : 218,672.97 = 45,944.77 : x
  2. Step 2: Convert to fraction form
    145,776.76/218,672.97 = 45,944.77/x
  3. Step 3: Cross multiply
    145,776.76x = 218,672.97 × 45,944.77
  4. Step 4: Simplify right side
    145,776.76x = 10,046,879,002.90
  5. Step 5: Solve for x
    x = 10,046,879,002.90/145,776.76
  6. Step 6: Final answer
    x = 68,919.62

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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.