Home / 133,238.07-183,860.69-72,796.68

Finding the Fourth Proportional to 133,238.07, 183,860.69 and 72,796.68

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Solution

The fourth proportional to 133,238.07, 183,860.69 and 72,796.68 is: 100,455.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,238.07 : 183,860.69 = 72,796.68 : x
  2. Step 2: Convert to fraction form
    133,238.07/183,860.69 = 72,796.68/x
  3. Step 3: Cross multiply
    133,238.07x = 183,860.69 × 72,796.68
  4. Step 4: Simplify right side
    133,238.07x = 13,384,447,814.51
  5. Step 5: Solve for x
    x = 13,384,447,814.51/133,238.07
  6. Step 6: Final answer
    x = 100,455.13

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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.