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Finding the Fourth Proportional to 147,313.69, 203,295.05 and 80,245.69

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Solution

The fourth proportional to 147,313.69, 203,295.05 and 80,245.69 is: 110,740.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,313.69 : 203,295.05 = 80,245.69 : x
  2. Step 2: Convert to fraction form
    147,313.69/203,295.05 = 80,245.69/x
  3. Step 3: Cross multiply
    147,313.69x = 203,295.05 × 80,245.69
  4. Step 4: Simplify right side
    147,313.69x = 16,313,550,952.29
  5. Step 5: Solve for x
    x = 16,313,550,952.29/147,313.69
  6. Step 6: Final answer
    x = 110,740.23

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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.