Home / 127,287.72-175,661.46-70,704.36

Finding the Fourth Proportional to 127,287.72, 175,661.46 and 70,704.36

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Solution

The fourth proportional to 127,287.72, 175,661.46 and 70,704.36 is: 97,574.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,287.72 : 175,661.46 = 70,704.36 : x
  2. Step 2: Convert to fraction form
    127,287.72/175,661.46 = 70,704.36/x
  3. Step 3: Cross multiply
    127,287.72x = 175,661.46 × 70,704.36
  4. Step 4: Simplify right side
    127,287.72x = 12,420,031,105.97
  5. Step 5: Solve for x
    x = 12,420,031,105.97/127,287.72
  6. Step 6: Final answer
    x = 97,574.46

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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.