Home / 149,973.09-225,015.80-77,881.07

Finding the Fourth Proportional to 149,973.09, 225,015.80 and 77,881.07

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Solution

The fourth proportional to 149,973.09, 225,015.80 and 77,881.07 is: 116,850.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,973.09 : 225,015.80 = 77,881.07 : x
  2. Step 2: Convert to fraction form
    149,973.09/225,015.80 = 77,881.07/x
  3. Step 3: Cross multiply
    149,973.09x = 225,015.80 × 77,881.07
  4. Step 4: Simplify right side
    149,973.09x = 17,524,471,270.91
  5. Step 5: Solve for x
    x = 17,524,471,270.91/149,973.09
  6. Step 6: Final answer
    x = 116,850.77

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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.