Home / 104,711.31-156,973.95-38,139.03

Finding the Fourth Proportional to 104,711.31, 156,973.95 and 38,139.03

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Solution

The fourth proportional to 104,711.31, 156,973.95 and 38,139.03 is: 57,174.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,711.31 : 156,973.95 = 38,139.03 : x
  2. Step 2: Convert to fraction form
    104,711.31/156,973.95 = 38,139.03/x
  3. Step 3: Cross multiply
    104,711.31x = 156,973.95 × 38,139.03
  4. Step 4: Simplify right side
    104,711.31x = 5,986,834,188.27
  5. Step 5: Solve for x
    x = 5,986,834,188.27/104,711.31
  6. Step 6: Final answer
    x = 57,174.67

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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.