Home / 133,299.36-183,973.14-76,699.80

Finding the Fourth Proportional to 133,299.36, 183,973.14 and 76,699.80

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Solution

The fourth proportional to 133,299.36, 183,973.14 and 76,699.80 is: 105,857.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,299.36 : 183,973.14 = 76,699.80 : x
  2. Step 2: Convert to fraction form
    133,299.36/183,973.14 = 76,699.80/x
  3. Step 3: Cross multiply
    133,299.36x = 183,973.14 × 76,699.80
  4. Step 4: Simplify right side
    133,299.36x = 14,110,703,043.37
  5. Step 5: Solve for x
    x = 14,110,703,043.37/133,299.36
  6. Step 6: Final answer
    x = 105,857.25

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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.