Home / 119,852.14-165,396.43-66,138.70

Finding the Fourth Proportional to 119,852.14, 165,396.43 and 66,138.70

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Solution

The fourth proportional to 119,852.14, 165,396.43 and 66,138.70 is: 91,271.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,852.14 : 165,396.43 = 66,138.70 : x
  2. Step 2: Convert to fraction form
    119,852.14/165,396.43 = 66,138.70/x
  3. Step 3: Cross multiply
    119,852.14x = 165,396.43 × 66,138.70
  4. Step 4: Simplify right side
    119,852.14x = 10,939,104,864.84
  5. Step 5: Solve for x
    x = 10,939,104,864.84/119,852.14
  6. Step 6: Final answer
    x = 91,271.67

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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.