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Finding the Fourth Proportional to 111,539.88, 153,921.60 and 60,550.20

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Solution

The fourth proportional to 111,539.88, 153,921.60 and 60,550.20 is: 83,557.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,539.88 : 153,921.60 = 60,550.20 : x
  2. Step 2: Convert to fraction form
    111,539.88/153,921.60 = 60,550.20/x
  3. Step 3: Cross multiply
    111,539.88x = 153,921.60 × 60,550.20
  4. Step 4: Simplify right side
    111,539.88x = 9,319,983,664.32
  5. Step 5: Solve for x
    x = 9,319,983,664.32/111,539.88
  6. Step 6: Final answer
    x = 83,557.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.