Home / 119,039.41-164,272.89-65,325.07

Finding the Fourth Proportional to 119,039.41, 164,272.89 and 65,325.07

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Solution

The fourth proportional to 119,039.41, 164,272.89 and 65,325.07 is: 90,147.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,039.41 : 164,272.89 = 65,325.07 : x
  2. Step 2: Convert to fraction form
    119,039.41/164,272.89 = 65,325.07/x
  3. Step 3: Cross multiply
    119,039.41x = 164,272.89 × 65,325.07
  4. Step 4: Simplify right side
    119,039.41x = 10,731,138,038.35
  5. Step 5: Solve for x
    x = 10,731,138,038.35/119,039.41
  6. Step 6: Final answer
    x = 90,147.78

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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.