Home / 119,709.19-165,199.80-65,996.11

Finding the Fourth Proportional to 119,709.19, 165,199.80 and 65,996.11

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Solution

The fourth proportional to 119,709.19, 165,199.80 and 65,996.11 is: 91,075.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,709.19 : 165,199.80 = 65,996.11 : x
  2. Step 2: Convert to fraction form
    119,709.19/165,199.80 = 65,996.11/x
  3. Step 3: Cross multiply
    119,709.19x = 165,199.80 × 65,996.11
  4. Step 4: Simplify right side
    119,709.19x = 10,902,544,172.78
  5. Step 5: Solve for x
    x = 10,902,544,172.78/119,709.19
  6. Step 6: Final answer
    x = 91,075.25

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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.