Home / 103,633.06-155,452.22-77,503.67

Finding the Fourth Proportional to 103,633.06, 155,452.22 and 77,503.67

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Solution

The fourth proportional to 103,633.06, 155,452.22 and 77,503.67 is: 116,257.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,633.06 : 155,452.22 = 77,503.67 : x
  2. Step 2: Convert to fraction form
    103,633.06/155,452.22 = 77,503.67/x
  3. Step 3: Cross multiply
    103,633.06x = 155,452.22 × 77,503.67
  4. Step 4: Simplify right side
    103,633.06x = 12,048,117,559.65
  5. Step 5: Solve for x
    x = 12,048,117,559.65/103,633.06
  6. Step 6: Final answer
    x = 116,257.47

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1.5x scale

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.