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Finding the Fourth Proportional to 117,998.15, 162,836.64 and 64,283.21

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Solution

The fourth proportional to 117,998.15, 162,836.64 and 64,283.21 is: 88,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,998.15 : 162,836.64 = 64,283.21 : x
  2. Step 2: Convert to fraction form
    117,998.15/162,836.64 = 64,283.21/x
  3. Step 3: Cross multiply
    117,998.15x = 162,836.64 × 64,283.21
  4. Step 4: Simplify right side
    117,998.15x = 10,467,661,924.81
  5. Step 5: Solve for x
    x = 10,467,661,924.81/117,998.15
  6. Step 6: Final answer
    x = 88,710.39

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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.