Home / 129,895.36-178,567.51-111,679.00

Finding the Fourth Proportional to 129,895.36, 178,567.51 and 111,679.00

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Solution

The fourth proportional to 129,895.36, 178,567.51 and 111,679.00 is: 153,525.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,895.36 : 178,567.51 = 111,679.00 : x
  2. Step 2: Convert to fraction form
    129,895.36/178,567.51 = 111,679.00/x
  3. Step 3: Cross multiply
    129,895.36x = 178,567.51 × 111,679.00
  4. Step 4: Simplify right side
    129,895.36x = 19,942,240,056.45
  5. Step 5: Solve for x
    x = 19,942,240,056.45/129,895.36
  6. Step 6: Final answer
    x = 153,525.43

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.