Home / 122,389.95-168,899.49-67,945.80

Finding the Fourth Proportional to 122,389.95, 168,899.49 and 67,945.80

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Solution

The fourth proportional to 122,389.95, 168,899.49 and 67,945.80 is: 93,765.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,389.95 : 168,899.49 = 67,945.80 : x
  2. Step 2: Convert to fraction form
    122,389.95/168,899.49 = 67,945.80/x
  3. Step 3: Cross multiply
    122,389.95x = 168,899.49 × 67,945.80
  4. Step 4: Simplify right side
    122,389.95x = 11,476,010,967.64
  5. Step 5: Solve for x
    x = 11,476,010,967.64/122,389.95
  6. Step 6: Final answer
    x = 93,765.96

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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.