Home / 133,721.96-200,447.87-83,837.07

Finding the Fourth Proportional to 133,721.96, 200,447.87 and 83,837.07

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Solution

The fourth proportional to 133,721.96, 200,447.87 and 83,837.07 is: 125,670.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,721.96 : 200,447.87 = 83,837.07 : x
  2. Step 2: Convert to fraction form
    133,721.96/200,447.87 = 83,837.07/x
  3. Step 3: Cross multiply
    133,721.96x = 200,447.87 × 83,837.07
  4. Step 4: Simplify right side
    133,721.96x = 16,804,961,689.36
  5. Step 5: Solve for x
    x = 16,804,961,689.36/133,721.96
  6. Step 6: Final answer
    x = 125,670.92

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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.