Home / 147,356.45-203,351.91-80,288.45

Finding the Fourth Proportional to 147,356.45, 203,351.91 and 80,288.45

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Solution

The fourth proportional to 147,356.45, 203,351.91 and 80,288.45 is: 110,798.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,356.45 : 203,351.91 = 80,288.45 : x
  2. Step 2: Convert to fraction form
    147,356.45/203,351.91 = 80,288.45/x
  3. Step 3: Cross multiply
    147,356.45x = 203,351.91 × 80,288.45
  4. Step 4: Simplify right side
    147,356.45x = 16,326,809,658.44
  5. Step 5: Solve for x
    x = 16,326,809,658.44/147,356.45
  6. Step 6: Final answer
    x = 110,798.07

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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.