Home / 99,261.45-136,982.14-53,940.13

Finding the Fourth Proportional to 99,261.45, 136,982.14 and 53,940.13

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Solution

The fourth proportional to 99,261.45, 136,982.14 and 53,940.13 is: 74,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,261.45 : 136,982.14 = 53,940.13 : x
  2. Step 2: Convert to fraction form
    99,261.45/136,982.14 = 53,940.13/x
  3. Step 3: Cross multiply
    99,261.45x = 136,982.14 × 53,940.13
  4. Step 4: Simplify right side
    99,261.45x = 7,388,833,961.97
  5. Step 5: Solve for x
    x = 7,388,833,961.97/99,261.45
  6. Step 6: Final answer
    x = 74,438.10

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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.