Home / 139,867.36-209,983.97-83,045.00

Finding the Fourth Proportional to 139,867.36, 209,983.97 and 83,045.00

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Solution

The fourth proportional to 139,867.36, 209,983.97 and 83,045.00 is: 124,676.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,867.36 : 209,983.97 = 83,045.00 : x
  2. Step 2: Convert to fraction form
    139,867.36/209,983.97 = 83,045.00/x
  3. Step 3: Cross multiply
    139,867.36x = 209,983.97 × 83,045.00
  4. Step 4: Simplify right side
    139,867.36x = 17,438,117,738.73
  5. Step 5: Solve for x
    x = 17,438,117,738.73/139,867.36
  6. Step 6: Final answer
    x = 124,676.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.