Home / 105,054.92-144,973.40-57,309.96

Finding the Fourth Proportional to 105,054.92, 144,973.40 and 57,309.96

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Solution

The fourth proportional to 105,054.92, 144,973.40 and 57,309.96 is: 79,086.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,054.92 : 144,973.40 = 57,309.96 : x
  2. Step 2: Convert to fraction form
    105,054.92/144,973.40 = 57,309.96/x
  3. Step 3: Cross multiply
    105,054.92x = 144,973.40 × 57,309.96
  4. Step 4: Simplify right side
    105,054.92x = 8,308,419,468.51
  5. Step 5: Solve for x
    x = 8,308,419,468.51/105,054.92
  6. Step 6: Final answer
    x = 79,086.44

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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.