Home / 99,205.36-136,828.38-68,975.55

Finding the Fourth Proportional to 99,205.36, 136,828.38 and 68,975.55

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Solution

The fourth proportional to 99,205.36, 136,828.38 and 68,975.55 is: 95,134.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,205.36 : 136,828.38 = 68,975.55 : x
  2. Step 2: Convert to fraction form
    99,205.36/136,828.38 = 68,975.55/x
  3. Step 3: Cross multiply
    99,205.36x = 136,828.38 × 68,975.55
  4. Step 4: Simplify right side
    99,205.36x = 9,437,812,766.11
  5. Step 5: Solve for x
    x = 9,437,812,766.11/99,205.36
  6. Step 6: Final answer
    x = 95,134.10

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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.