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Finding the Fourth Proportional to 98,145.64, 135,444.26 and 53,435.24

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Solution

The fourth proportional to 98,145.64, 135,444.26 and 53,435.24 is: 73,742.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,145.64 : 135,444.26 = 53,435.24 : x
  2. Step 2: Convert to fraction form
    98,145.64/135,444.26 = 53,435.24/x
  3. Step 3: Cross multiply
    98,145.64x = 135,444.26 × 53,435.24
  4. Step 4: Simplify right side
    98,145.64x = 7,237,496,539.72
  5. Step 5: Solve for x
    x = 7,237,496,539.72/98,145.64
  6. Step 6: Final answer
    x = 73,742.42

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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.