Home / 109,273.80-150,803.46-66,819

Finding the Fourth Proportional to 109,273.80, 150,803.46 and 66,819

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Solution

The fourth proportional to 109,273.80, 150,803.46 and 66,819 is: 92,213.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,273.80 : 150,803.46 = 66,819 : x
  2. Step 2: Convert to fraction form
    109,273.80/150,803.46 = 66,819/x
  3. Step 3: Cross multiply
    109,273.80x = 150,803.46 × 66,819
  4. Step 4: Simplify right side
    109,273.80x = 10,076,536,393.74
  5. Step 5: Solve for x
    x = 10,076,536,393.74/109,273.80
  6. Step 6: Final answer
    x = 92,213.65

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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.