Home / 117,435.16-162,102.54-69,688.50

Finding the Fourth Proportional to 117,435.16, 162,102.54 and 69,688.50

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Solution

The fourth proportional to 117,435.16, 162,102.54 and 69,688.50 is: 96,195.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,435.16 : 162,102.54 = 69,688.50 : x
  2. Step 2: Convert to fraction form
    117,435.16/162,102.54 = 69,688.50/x
  3. Step 3: Cross multiply
    117,435.16x = 162,102.54 × 69,688.50
  4. Step 4: Simplify right side
    117,435.16x = 11,296,682,858.79
  5. Step 5: Solve for x
    x = 11,296,682,858.79/117,435.16
  6. Step 6: Final answer
    x = 96,195.07

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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.