Home / 119,783.28-165,299.82-66,068.67

Finding the Fourth Proportional to 119,783.28, 165,299.82 and 66,068.67

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Solution

The fourth proportional to 119,783.28, 165,299.82 and 66,068.67 is: 91,174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,783.28 : 165,299.82 = 66,068.67 : x
  2. Step 2: Convert to fraction form
    119,783.28/165,299.82 = 66,068.67/x
  3. Step 3: Cross multiply
    119,783.28x = 165,299.82 × 66,068.67
  4. Step 4: Simplify right side
    119,783.28x = 10,921,139,258.64
  5. Step 5: Solve for x
    x = 10,921,139,258.64/119,783.28
  6. Step 6: Final answer
    x = 91,174.15

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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.