Home / 123,457.20-170,384.77-69,745.67

Finding the Fourth Proportional to 123,457.20, 170,384.77 and 69,745.67

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Solution

The fourth proportional to 123,457.20, 170,384.77 and 69,745.67 is: 96,256.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,457.20 : 170,384.77 = 69,745.67 : x
  2. Step 2: Convert to fraction form
    123,457.20/170,384.77 = 69,745.67/x
  3. Step 3: Cross multiply
    123,457.20x = 170,384.77 × 69,745.67
  4. Step 4: Simplify right side
    123,457.20x = 11,883,599,941.45
  5. Step 5: Solve for x
    x = 11,883,599,941.45/123,457.20
  6. Step 6: Final answer
    x = 96,256.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.