Home / 122,653.76-169,276.21-68,211.35

Finding the Fourth Proportional to 122,653.76, 169,276.21 and 68,211.35

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Solution

The fourth proportional to 122,653.76, 169,276.21 and 68,211.35 is: 94,139.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,653.76 : 169,276.21 = 68,211.35 : x
  2. Step 2: Convert to fraction form
    122,653.76/169,276.21 = 68,211.35/x
  3. Step 3: Cross multiply
    122,653.76x = 169,276.21 × 68,211.35
  4. Step 4: Simplify right side
    122,653.76x = 11,546,558,213.26
  5. Step 5: Solve for x
    x = 11,546,558,213.26/122,653.76
  6. Step 6: Final answer
    x = 94,139.46

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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.