Home / 117,743.22-162,457.20-74,707.02

Finding the Fourth Proportional to 117,743.22, 162,457.20 and 74,707.02

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Solution

The fourth proportional to 117,743.22, 162,457.20 and 74,707.02 is: 103,077.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,743.22 : 162,457.20 = 74,707.02 : x
  2. Step 2: Convert to fraction form
    117,743.22/162,457.20 = 74,707.02/x
  3. Step 3: Cross multiply
    117,743.22x = 162,457.20 × 74,707.02
  4. Step 4: Simplify right side
    117,743.22x = 12,136,693,289.54
  5. Step 5: Solve for x
    x = 12,136,693,289.54/117,743.22
  6. Step 6: Final answer
    x = 103,077.64

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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.