Home / 123,511.14-170,445.96-66,922.50

Finding the Fourth Proportional to 123,511.14, 170,445.96 and 66,922.50

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Solution

The fourth proportional to 123,511.14, 170,445.96 and 66,922.50 is: 92,353.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,511.14 : 170,445.96 = 66,922.50 : x
  2. Step 2: Convert to fraction form
    123,511.14/170,445.96 = 66,922.50/x
  3. Step 3: Cross multiply
    123,511.14x = 170,445.96 × 66,922.50
  4. Step 4: Simplify right side
    123,511.14x = 11,406,669,758.10
  5. Step 5: Solve for x
    x = 11,406,669,758.10/123,511.14
  6. Step 6: Final answer
    x = 92,353.37

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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.