Home / 133,233.72-183,863.01-72,804.36

Finding the Fourth Proportional to 133,233.72, 183,863.01 and 72,804.36

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Solution

The fourth proportional to 133,233.72, 183,863.01 and 72,804.36 is: 100,470.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,233.72 : 183,863.01 = 72,804.36 : x
  2. Step 2: Convert to fraction form
    133,233.72/183,863.01 = 72,804.36/x
  3. Step 3: Cross multiply
    133,233.72x = 183,863.01 × 72,804.36
  4. Step 4: Simplify right side
    133,233.72x = 13,386,028,497.71
  5. Step 5: Solve for x
    x = 13,386,028,497.71/133,233.72
  6. Step 6: Final answer
    x = 100,470.28

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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.