Home / 74,200.59-102,412.26-68,222.79

Finding the Fourth Proportional to 74,200.59, 102,412.26 and 68,222.79

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Solution

The fourth proportional to 74,200.59, 102,412.26 and 68,222.79 is: 94,161.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,200.59 : 102,412.26 = 68,222.79 : x
  2. Step 2: Convert to fraction form
    74,200.59/102,412.26 = 68,222.79/x
  3. Step 3: Cross multiply
    74,200.59x = 102,412.26 × 68,222.79
  4. Step 4: Simplify right side
    74,200.59x = 6,986,850,107.41
  5. Step 5: Solve for x
    x = 6,986,850,107.41/74,200.59
  6. Step 6: Final answer
    x = 94,161.65

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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.