Home / 123,113.24-169,896.20-66,524.60

Finding the Fourth Proportional to 123,113.24, 169,896.20 and 66,524.60

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Solution

The fourth proportional to 123,113.24, 169,896.20 and 66,524.60 is: 91,803.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,113.24 : 169,896.20 = 66,524.60 : x
  2. Step 2: Convert to fraction form
    123,113.24/169,896.20 = 66,524.60/x
  3. Step 3: Cross multiply
    123,113.24x = 169,896.20 × 66,524.60
  4. Step 4: Simplify right side
    123,113.24x = 11,302,276,746.52
  5. Step 5: Solve for x
    x = 11,302,276,746.52/123,113.24
  6. Step 6: Final answer
    x = 91,803.91

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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.