Home / 77,334.20-116,001.30-68,521.40

Finding the Fourth Proportional to 77,334.20, 116,001.30 and 68,521.40

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Solution

The fourth proportional to 77,334.20, 116,001.30 and 68,521.40 is: 102,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,334.20 : 116,001.30 = 68,521.40 : x
  2. Step 2: Convert to fraction form
    77,334.20/116,001.30 = 68,521.40/x
  3. Step 3: Cross multiply
    77,334.20x = 116,001.30 × 68,521.40
  4. Step 4: Simplify right side
    77,334.20x = 7,948,571,477.82
  5. Step 5: Solve for x
    x = 7,948,571,477.82/77,334.20
  6. Step 6: Final answer
    x = 102,782.10

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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.