Home / 127,103.40-175,408.19-76,124.43

Finding the Fourth Proportional to 127,103.40, 175,408.19 and 76,124.43

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Solution

The fourth proportional to 127,103.40, 175,408.19 and 76,124.43 is: 105,055.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,103.40 : 175,408.19 = 76,124.43 : x
  2. Step 2: Convert to fraction form
    127,103.40/175,408.19 = 76,124.43/x
  3. Step 3: Cross multiply
    127,103.40x = 175,408.19 × 76,124.43
  4. Step 4: Simplify right side
    127,103.40x = 13,352,848,100.46
  5. Step 5: Solve for x
    x = 13,352,848,100.46/127,103.40
  6. Step 6: Final answer
    x = 105,055.00

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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.