Home / 99,108.03-136,769.24-56,667.47

Finding the Fourth Proportional to 99,108.03, 136,769.24 and 56,667.47

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Solution

The fourth proportional to 99,108.03, 136,769.24 and 56,667.47 is: 78,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,108.03 : 136,769.24 = 56,667.47 : x
  2. Step 2: Convert to fraction form
    99,108.03/136,769.24 = 56,667.47/x
  3. Step 3: Cross multiply
    99,108.03x = 136,769.24 × 56,667.47
  4. Step 4: Simplify right side
    99,108.03x = 7,750,366,804.62
  5. Step 5: Solve for x
    x = 7,750,366,804.62/99,108.03
  6. Step 6: Final answer
    x = 78,201.20

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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.