Home / 122,278.86-168,673.16-76,884.90

Finding the Fourth Proportional to 122,278.86, 168,673.16 and 76,884.90

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Solution

The fourth proportional to 122,278.86, 168,673.16 and 76,884.90 is: 106,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,278.86 : 168,673.16 = 76,884.90 : x
  2. Step 2: Convert to fraction form
    122,278.86/168,673.16 = 76,884.90/x
  3. Step 3: Cross multiply
    122,278.86x = 168,673.16 × 76,884.90
  4. Step 4: Simplify right side
    122,278.86x = 12,968,418,654.86
  5. Step 5: Solve for x
    x = 12,968,418,654.86/122,278.86
  6. Step 6: Final answer
    x = 106,056.10

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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.