Home / 114,835.19-172,055.95-91,215.59

Finding the Fourth Proportional to 114,835.19, 172,055.95 and 91,215.59

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Solution

The fourth proportional to 114,835.19, 172,055.95 and 91,215.59 is: 136,667.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,835.19 : 172,055.95 = 91,215.59 : x
  2. Step 2: Convert to fraction form
    114,835.19/172,055.95 = 91,215.59/x
  3. Step 3: Cross multiply
    114,835.19x = 172,055.95 × 91,215.59
  4. Step 4: Simplify right side
    114,835.19x = 15,694,183,903.94
  5. Step 5: Solve for x
    x = 15,694,183,903.94/114,835.19
  6. Step 6: Final answer
    x = 136,667.03

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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.