Home / 127,137.40-175,457.94-73,424.68

Finding the Fourth Proportional to 127,137.40, 175,457.94 and 73,424.68

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Solution

The fourth proportional to 127,137.40, 175,457.94 and 73,424.68 is: 101,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,137.40 : 175,457.94 = 73,424.68 : x
  2. Step 2: Convert to fraction form
    127,137.40/175,457.94 = 73,424.68/x
  3. Step 3: Cross multiply
    127,137.40x = 175,457.94 × 73,424.68
  4. Step 4: Simplify right side
    127,137.40x = 12,882,943,097.96
  5. Step 5: Solve for x
    x = 12,882,943,097.96/127,137.40
  6. Step 6: Final answer
    x = 101,330.87

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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.