Home / 102,183.57-153,135.63-77,203.17

Finding the Fourth Proportional to 102,183.57, 153,135.63 and 77,203.17

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Solution

The fourth proportional to 102,183.57, 153,135.63 and 77,203.17 is: 115,699.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,183.57 : 153,135.63 = 77,203.17 : x
  2. Step 2: Convert to fraction form
    102,183.57/153,135.63 = 77,203.17/x
  3. Step 3: Cross multiply
    102,183.57x = 153,135.63 × 77,203.17
  4. Step 4: Simplify right side
    102,183.57x = 11,822,556,075.95
  5. Step 5: Solve for x
    x = 11,822,556,075.95/102,183.57
  6. Step 6: Final answer
    x = 115,699.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.