Home / 99,103.50-136,769.57-56,083.02

Finding the Fourth Proportional to 99,103.50, 136,769.57 and 56,083.02

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Solution

The fourth proportional to 99,103.50, 136,769.57 and 56,083.02 is: 77,398.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,103.50 : 136,769.57 = 56,083.02 : x
  2. Step 2: Convert to fraction form
    99,103.50/136,769.57 = 56,083.02/x
  3. Step 3: Cross multiply
    99,103.50x = 136,769.57 × 56,083.02
  4. Step 4: Simplify right side
    99,103.50x = 7,670,450,529.70
  5. Step 5: Solve for x
    x = 7,670,450,529.70/99,103.50
  6. Step 6: Final answer
    x = 77,398.38

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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.