Home / 122,416.94-168,936.63-67,970

Finding the Fourth Proportional to 122,416.94, 168,936.63 and 67,970

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Solution

The fourth proportional to 122,416.94, 168,936.63 and 67,970 is: 93,799.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,416.94 : 168,936.63 = 67,970 : x
  2. Step 2: Convert to fraction form
    122,416.94/168,936.63 = 67,970/x
  3. Step 3: Cross multiply
    122,416.94x = 168,936.63 × 67,970
  4. Step 4: Simplify right side
    122,416.94x = 11,482,622,741.10
  5. Step 5: Solve for x
    x = 11,482,622,741.10/122,416.94
  6. Step 6: Final answer
    x = 93,799.30

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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.