Home / 122,728.74-169,364.59-69,012.60

Finding the Fourth Proportional to 122,728.74, 169,364.59 and 69,012.60

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Solution

The fourth proportional to 122,728.74, 169,364.59 and 69,012.60 is: 95,236.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,728.74 : 169,364.59 = 69,012.60 : x
  2. Step 2: Convert to fraction form
    122,728.74/169,364.59 = 69,012.60/x
  3. Step 3: Cross multiply
    122,728.74x = 169,364.59 × 69,012.60
  4. Step 4: Simplify right side
    122,728.74x = 11,688,291,237.06
  5. Step 5: Solve for x
    x = 11,688,291,237.06/122,728.74
  6. Step 6: Final answer
    x = 95,236.79

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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.