Home / 117,907.45-162,715.68-64,193.38

Finding the Fourth Proportional to 117,907.45, 162,715.68 and 64,193.38

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Solution

The fourth proportional to 117,907.45, 162,715.68 and 64,193.38 is: 88,588.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,907.45 : 162,715.68 = 64,193.38 : x
  2. Step 2: Convert to fraction form
    117,907.45/162,715.68 = 64,193.38/x
  3. Step 3: Cross multiply
    117,907.45x = 162,715.68 × 64,193.38
  4. Step 4: Simplify right side
    117,907.45x = 10,445,269,071.41
  5. Step 5: Solve for x
    x = 10,445,269,071.41/117,907.45
  6. Step 6: Final answer
    x = 88,588.71

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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.