Home / 122,110.65-168,426.09-76,193.41

Finding the Fourth Proportional to 122,110.65, 168,426.09 and 76,193.41

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Solution

The fourth proportional to 122,110.65, 168,426.09 and 76,193.41 is: 105,092.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,110.65 : 168,426.09 = 76,193.41 : x
  2. Step 2: Convert to fraction form
    122,110.65/168,426.09 = 76,193.41/x
  3. Step 3: Cross multiply
    122,110.65x = 168,426.09 × 76,193.41
  4. Step 4: Simplify right side
    122,110.65x = 12,832,958,130.07
  5. Step 5: Solve for x
    x = 12,832,958,130.07/122,110.65
  6. Step 6: Final answer
    x = 105,092.87

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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.