Home / 115,973.64-159,933.42-75,674.52

Finding the Fourth Proportional to 115,973.64, 159,933.42 and 75,674.52

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Solution

The fourth proportional to 115,973.64, 159,933.42 and 75,674.52 is: 104,358.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,973.64 : 159,933.42 = 75,674.52 : x
  2. Step 2: Convert to fraction form
    115,973.64/159,933.42 = 75,674.52/x
  3. Step 3: Cross multiply
    115,973.64x = 159,933.42 × 75,674.52
  4. Step 4: Simplify right side
    115,973.64x = 12,102,884,790.46
  5. Step 5: Solve for x
    x = 12,102,884,790.46/115,973.64
  6. Step 6: Final answer
    x = 104,358.93

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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.