Home / 140,880.48-194,415.05-77,216.91

Finding the Fourth Proportional to 140,880.48, 194,415.05 and 77,216.91

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Solution

The fourth proportional to 140,880.48, 194,415.05 and 77,216.91 is: 106,559.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,880.48 : 194,415.05 = 77,216.91 : x
  2. Step 2: Convert to fraction form
    140,880.48/194,415.05 = 77,216.91/x
  3. Step 3: Cross multiply
    140,880.48x = 194,415.05 × 77,216.91
  4. Step 4: Simplify right side
    140,880.48x = 15,012,129,032.41
  5. Step 5: Solve for x
    x = 15,012,129,032.41/140,880.48
  6. Step 6: Final answer
    x = 106,559.33

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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.