Home / 124,918.89-172,409.84-120,766.92

Finding the Fourth Proportional to 124,918.89, 172,409.84 and 120,766.92

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Solution

The fourth proportional to 124,918.89, 172,409.84 and 120,766.92 is: 166,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,918.89 : 172,409.84 = 120,766.92 : x
  2. Step 2: Convert to fraction form
    124,918.89/172,409.84 = 120,766.92/x
  3. Step 3: Cross multiply
    124,918.89x = 172,409.84 × 120,766.92
  4. Step 4: Simplify right side
    124,918.89x = 20,821,405,354.49
  5. Step 5: Solve for x
    x = 20,821,405,354.49/124,918.89
  6. Step 6: Final answer
    x = 166,679.40

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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.