Home / 99,118.08-136,783.96-53,796.44

Finding the Fourth Proportional to 99,118.08, 136,783.96 and 53,796.44

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Solution

The fourth proportional to 99,118.08, 136,783.96 and 53,796.44 is: 74,239.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,118.08 : 136,783.96 = 53,796.44 : x
  2. Step 2: Convert to fraction form
    99,118.08/136,783.96 = 53,796.44/x
  3. Step 3: Cross multiply
    99,118.08x = 136,783.96 × 53,796.44
  4. Step 4: Simplify right side
    99,118.08x = 7,358,490,097.10
  5. Step 5: Solve for x
    x = 7,358,490,097.10/99,118.08
  6. Step 6: Final answer
    x = 74,239.64

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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.