Home / 280,117.98-419,911.02-111,741.66

Finding the Fourth Proportional to 280,117.98, 419,911.02 and 111,741.66

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Solution

The fourth proportional to 280,117.98, 419,911.02 and 111,741.66 is: 167,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,117.98 : 419,911.02 = 111,741.66 : x
  2. Step 2: Convert to fraction form
    280,117.98/419,911.02 = 111,741.66/x
  3. Step 3: Cross multiply
    280,117.98x = 419,911.02 × 111,741.66
  4. Step 4: Simplify right side
    280,117.98x = 46,921,554,427.09
  5. Step 5: Solve for x
    x = 46,921,554,427.09/280,117.98
  6. Step 6: Final answer
    x = 167,506.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.