Home / 106,389.78-159,603.60-35,316.66

Finding the Fourth Proportional to 106,389.78, 159,603.60 and 35,316.66

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Solution

The fourth proportional to 106,389.78, 159,603.60 and 35,316.66 is: 52,981.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,389.78 : 159,603.60 = 35,316.66 : x
  2. Step 2: Convert to fraction form
    106,389.78/159,603.60 = 35,316.66/x
  3. Step 3: Cross multiply
    106,389.78x = 159,603.60 × 35,316.66
  4. Step 4: Simplify right side
    106,389.78x = 5,636,666,075.98
  5. Step 5: Solve for x
    x = 5,636,666,075.98/106,389.78
  6. Step 6: Final answer
    x = 52,981.27

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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.