Home / 122,770.32-169,421.81-68,321.56

Finding the Fourth Proportional to 122,770.32, 169,421.81 and 68,321.56

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Solution

The fourth proportional to 122,770.32, 169,421.81 and 68,321.56 is: 94,283.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,770.32 : 169,421.81 = 68,321.56 : x
  2. Step 2: Convert to fraction form
    122,770.32/169,421.81 = 68,321.56/x
  3. Step 3: Cross multiply
    122,770.32x = 169,421.81 × 68,321.56
  4. Step 4: Simplify right side
    122,770.32x = 11,575,162,357.22
  5. Step 5: Solve for x
    x = 11,575,162,357.22/122,770.32
  6. Step 6: Final answer
    x = 94,283.07

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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.