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Finding the Fourth Proportional to 117,701, 162,415.26 and 69,945.16

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Solution

The fourth proportional to 117,701, 162,415.26 and 69,945.16 is: 96,517.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,701 : 162,415.26 = 69,945.16 : x
  2. Step 2: Convert to fraction form
    117,701/162,415.26 = 69,945.16/x
  3. Step 3: Cross multiply
    117,701x = 162,415.26 × 69,945.16
  4. Step 4: Simplify right side
    117,701x = 11,360,161,347.14
  5. Step 5: Solve for x
    x = 11,360,161,347.14/117,701
  6. Step 6: Final answer
    x = 96,517.12

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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.