Home / 122,922.77-169,636.55-69,209.78

Finding the Fourth Proportional to 122,922.77, 169,636.55 and 69,209.78

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Solution

The fourth proportional to 122,922.77, 169,636.55 and 69,209.78 is: 95,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,922.77 : 169,636.55 = 69,209.78 : x
  2. Step 2: Convert to fraction form
    122,922.77/169,636.55 = 69,209.78/x
  3. Step 3: Cross multiply
    122,922.77x = 169,636.55 × 69,209.78
  4. Step 4: Simplify right side
    122,922.77x = 11,740,507,111.23
  5. Step 5: Solve for x
    x = 11,740,507,111.23/122,922.77
  6. Step 6: Final answer
    x = 95,511.25

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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.