Home / 111,643.09-154,069.21-60,656.83

Finding the Fourth Proportional to 111,643.09, 154,069.21 and 60,656.83

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Solution

The fourth proportional to 111,643.09, 154,069.21 and 60,656.83 is: 83,707.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,643.09 : 154,069.21 = 60,656.83 : x
  2. Step 2: Convert to fraction form
    111,643.09/154,069.21 = 60,656.83/x
  3. Step 3: Cross multiply
    111,643.09x = 154,069.21 × 60,656.83
  4. Step 4: Simplify right side
    111,643.09x = 9,345,349,879.20
  5. Step 5: Solve for x
    x = 9,345,349,879.20/111,643.09
  6. Step 6: Final answer
    x = 83,707.37

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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.