Home / 119,204.81-164,518.38-76,886.36

Finding the Fourth Proportional to 119,204.81, 164,518.38 and 76,886.36

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Solution

The fourth proportional to 119,204.81, 164,518.38 and 76,886.36 is: 106,113.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,204.81 : 164,518.38 = 76,886.36 : x
  2. Step 2: Convert to fraction form
    119,204.81/164,518.38 = 76,886.36/x
  3. Step 3: Cross multiply
    119,204.81x = 164,518.38 × 76,886.36
  4. Step 4: Simplify right side
    119,204.81x = 12,649,218,568.70
  5. Step 5: Solve for x
    x = 12,649,218,568.70/119,204.81
  6. Step 6: Final answer
    x = 106,113.33

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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.