Home / 103,876.79-155,692.14-47,669.52

Finding the Fourth Proportional to 103,876.79, 155,692.14 and 47,669.52

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Solution

The fourth proportional to 103,876.79, 155,692.14 and 47,669.52 is: 71,447.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,876.79 : 155,692.14 = 47,669.52 : x
  2. Step 2: Convert to fraction form
    103,876.79/155,692.14 = 47,669.52/x
  3. Step 3: Cross multiply
    103,876.79x = 155,692.14 × 47,669.52
  4. Step 4: Simplify right side
    103,876.79x = 7,421,769,581.57
  5. Step 5: Solve for x
    x = 7,421,769,581.57/103,876.79
  6. Step 6: Final answer
    x = 71,447.81

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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.