Home / 122,890.22-169,554.54-69,172.10

Finding the Fourth Proportional to 122,890.22, 169,554.54 and 69,172.10

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Solution

The fourth proportional to 122,890.22, 169,554.54 and 69,172.10 is: 95,438.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,890.22 : 169,554.54 = 69,172.10 : x
  2. Step 2: Convert to fraction form
    122,890.22/169,554.54 = 69,172.10/x
  3. Step 3: Cross multiply
    122,890.22x = 169,554.54 × 69,172.10
  4. Step 4: Simplify right side
    122,890.22x = 11,728,443,596.33
  5. Step 5: Solve for x
    x = 11,728,443,596.33/122,890.22
  6. Step 6: Final answer
    x = 95,438.38

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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.