Home / 103,453.72-155,177.49-28,578.35

Finding the Fourth Proportional to 103,453.72, 155,177.49 and 28,578.35

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Solution

The fourth proportional to 103,453.72, 155,177.49 and 28,578.35 is: 42,866.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,453.72 : 155,177.49 = 28,578.35 : x
  2. Step 2: Convert to fraction form
    103,453.72/155,177.49 = 28,578.35/x
  3. Step 3: Cross multiply
    103,453.72x = 155,177.49 × 28,578.35
  4. Step 4: Simplify right side
    103,453.72x = 4,434,716,621.34
  5. Step 5: Solve for x
    x = 4,434,716,621.34/103,453.72
  6. Step 6: Final answer
    x = 42,866.67

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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.