Home / 147,315.43-203,295.32-80,247.43

Finding the Fourth Proportional to 147,315.43, 203,295.32 and 80,247.43

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Solution

The fourth proportional to 147,315.43, 203,295.32 and 80,247.43 is: 110,741.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,315.43 : 203,295.32 = 80,247.43 : x
  2. Step 2: Convert to fraction form
    147,315.43/203,295.32 = 80,247.43/x
  3. Step 3: Cross multiply
    147,315.43x = 203,295.32 × 80,247.43
  4. Step 4: Simplify right side
    147,315.43x = 16,313,926,961.03
  5. Step 5: Solve for x
    x = 16,313,926,961.03/147,315.43
  6. Step 6: Final answer
    x = 110,741.47

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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.