Home / 103,625.06-155,440.22-77,495.67

Finding the Fourth Proportional to 103,625.06, 155,440.22 and 77,495.67

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Solution

The fourth proportional to 103,625.06, 155,440.22 and 77,495.67 is: 116,245.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.06 : 155,440.22 = 77,495.67 : x
  2. Step 2: Convert to fraction form
    103,625.06/155,440.22 = 77,495.67/x
  3. Step 3: Cross multiply
    103,625.06x = 155,440.22 × 77,495.67
  4. Step 4: Simplify right side
    103,625.06x = 12,045,943,606.37
  5. Step 5: Solve for x
    x = 12,045,943,606.37/103,625.06
  6. Step 6: Final answer
    x = 116,245.47

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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.