Home / 124,218.86-171,419.34-72,544.85

Finding the Fourth Proportional to 124,218.86, 171,419.34 and 72,544.85

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Solution

The fourth proportional to 124,218.86, 171,419.34 and 72,544.85 is: 100,110.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,218.86 : 171,419.34 = 72,544.85 : x
  2. Step 2: Convert to fraction form
    124,218.86/171,419.34 = 72,544.85/x
  3. Step 3: Cross multiply
    124,218.86x = 171,419.34 × 72,544.85
  4. Step 4: Simplify right side
    124,218.86x = 12,435,589,087.58
  5. Step 5: Solve for x
    x = 12,435,589,087.58/124,218.86
  6. Step 6: Final answer
    x = 100,110.31

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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.