Home / 208,322.22-312,389.91-124,122.03

Finding the Fourth Proportional to 208,322.22, 312,389.91 and 124,122.03

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Solution

The fourth proportional to 208,322.22, 312,389.91 and 124,122.03 is: 186,127.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,322.22 : 312,389.91 = 124,122.03 : x
  2. Step 2: Convert to fraction form
    208,322.22/312,389.91 = 124,122.03/x
  3. Step 3: Cross multiply
    208,322.22x = 312,389.91 × 124,122.03
  4. Step 4: Simplify right side
    208,322.22x = 38,774,469,780.72
  5. Step 5: Solve for x
    x = 38,774,469,780.72/208,322.22
  6. Step 6: Final answer
    x = 186,127.38

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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.