Home / 99,195.03-137,004.62-83,120.58

Finding the Fourth Proportional to 99,195.03, 137,004.62 and 83,120.58

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Solution

The fourth proportional to 99,195.03, 137,004.62 and 83,120.58 is: 114,803.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,195.03 : 137,004.62 = 83,120.58 : x
  2. Step 2: Convert to fraction form
    99,195.03/137,004.62 = 83,120.58/x
  3. Step 3: Cross multiply
    99,195.03x = 137,004.62 × 83,120.58
  4. Step 4: Simplify right side
    99,195.03x = 11,387,903,061.48
  5. Step 5: Solve for x
    x = 11,387,903,061.48/99,195.03
  6. Step 6: Final answer
    x = 114,803.16

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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.