Home / 109,046.70-150,457.56-66,589.74

Finding the Fourth Proportional to 109,046.70, 150,457.56 and 66,589.74

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Solution

The fourth proportional to 109,046.70, 150,457.56 and 66,589.74 is: 91,877.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,046.70 : 150,457.56 = 66,589.74 : x
  2. Step 2: Convert to fraction form
    109,046.70/150,457.56 = 66,589.74/x
  3. Step 3: Cross multiply
    109,046.70x = 150,457.56 × 66,589.74
  4. Step 4: Simplify right side
    109,046.70x = 10,018,929,801.43
  5. Step 5: Solve for x
    x = 10,018,929,801.43/109,046.70
  6. Step 6: Final answer
    x = 91,877.42

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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.