Home / 99,118.08-136,783.98-53,796.48

Finding the Fourth Proportional to 99,118.08, 136,783.98 and 53,796.48

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Solution

The fourth proportional to 99,118.08, 136,783.98 and 53,796.48 is: 74,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,118.08 : 136,783.98 = 53,796.48 : x
  2. Step 2: Convert to fraction form
    99,118.08/136,783.98 = 53,796.48/x
  3. Step 3: Cross multiply
    99,118.08x = 136,783.98 × 53,796.48
  4. Step 4: Simplify right side
    99,118.08x = 7,358,496,644.39
  5. Step 5: Solve for x
    x = 7,358,496,644.39/99,118.08
  6. Step 6: Final answer
    x = 74,239.70

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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.