Home / 114,400.85-157,779.59-80,521.49

Finding the Fourth Proportional to 114,400.85, 157,779.59 and 80,521.49

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Solution

The fourth proportional to 114,400.85, 157,779.59 and 80,521.49 is: 111,053.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,400.85 : 157,779.59 = 80,521.49 : x
  2. Step 2: Convert to fraction form
    114,400.85/157,779.59 = 80,521.49/x
  3. Step 3: Cross multiply
    114,400.85x = 157,779.59 × 80,521.49
  4. Step 4: Simplify right side
    114,400.85x = 12,704,647,670.23
  5. Step 5: Solve for x
    x = 12,704,647,670.23/114,400.85
  6. Step 6: Final answer
    x = 111,053.78

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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.