Home / 127,101.10-175,326.64-79,271.41

Finding the Fourth Proportional to 127,101.10, 175,326.64 and 79,271.41

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Solution

The fourth proportional to 127,101.10, 175,326.64 and 79,271.41 is: 109,349.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,101.10 : 175,326.64 = 79,271.41 : x
  2. Step 2: Convert to fraction form
    127,101.10/175,326.64 = 79,271.41/x
  3. Step 3: Cross multiply
    127,101.10x = 175,326.64 × 79,271.41
  4. Step 4: Simplify right side
    127,101.10x = 13,898,389,963.36
  5. Step 5: Solve for x
    x = 13,898,389,963.36/127,101.10
  6. Step 6: Final answer
    x = 109,349.09

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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.