Home / 111,693.03-154,137.23-60,705.78

Finding the Fourth Proportional to 111,693.03, 154,137.23 and 60,705.78

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Solution

The fourth proportional to 111,693.03, 154,137.23 and 60,705.78 is: 83,774.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,693.03 : 154,137.23 = 60,705.78 : x
  2. Step 2: Convert to fraction form
    111,693.03/154,137.23 = 60,705.78/x
  3. Step 3: Cross multiply
    111,693.03x = 154,137.23 × 60,705.78
  4. Step 4: Simplify right side
    111,693.03x = 9,357,020,774.19
  5. Step 5: Solve for x
    x = 9,357,020,774.19/111,693.03
  6. Step 6: Final answer
    x = 83,774.44

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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.