Home / 127,101.23-175,326.82-79,271.54

Finding the Fourth Proportional to 127,101.23, 175,326.82 and 79,271.54

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Solution

The fourth proportional to 127,101.23, 175,326.82 and 79,271.54 is: 109,349.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,101.23 : 175,326.82 = 79,271.54 : x
  2. Step 2: Convert to fraction form
    127,101.23/175,326.82 = 79,271.54/x
  3. Step 3: Cross multiply
    127,101.23x = 175,326.82 × 79,271.54
  4. Step 4: Simplify right side
    127,101.23x = 13,898,425,751.71
  5. Step 5: Solve for x
    x = 13,898,425,751.71/127,101.23
  6. Step 6: Final answer
    x = 109,349.27

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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.