Home / 133,055.04-199,629.78-83,077.20

Finding the Fourth Proportional to 133,055.04, 199,629.78 and 83,077.20

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Solution

The fourth proportional to 133,055.04, 199,629.78 and 83,077.20 is: 124,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,055.04 : 199,629.78 = 83,077.20 : x
  2. Step 2: Convert to fraction form
    133,055.04/199,629.78 = 83,077.20/x
  3. Step 3: Cross multiply
    133,055.04x = 199,629.78 × 83,077.20
  4. Step 4: Simplify right side
    133,055.04x = 16,584,683,159.02
  5. Step 5: Solve for x
    x = 16,584,683,159.02/133,055.04
  6. Step 6: Final answer
    x = 124,645.28

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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.