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Finding the Fourth Proportional to 121,491.74, 167,568.08 and 89,216.22

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Solution

The fourth proportional to 121,491.74, 167,568.08 and 89,216.22 is: 123,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,491.74 : 167,568.08 = 89,216.22 : x
  2. Step 2: Convert to fraction form
    121,491.74/167,568.08 = 89,216.22/x
  3. Step 3: Cross multiply
    121,491.74x = 167,568.08 × 89,216.22
  4. Step 4: Simplify right side
    121,491.74x = 14,949,790,690.26
  5. Step 5: Solve for x
    x = 14,949,790,690.26/121,491.74
  6. Step 6: Final answer
    x = 123,051.91

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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.