Home / 118,318.24-163,232.51-72,917.20

Finding the Fourth Proportional to 118,318.24, 163,232.51 and 72,917.20

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Solution

The fourth proportional to 118,318.24, 163,232.51 and 72,917.20 is: 100,596.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,318.24 : 163,232.51 = 72,917.20 : x
  2. Step 2: Convert to fraction form
    118,318.24/163,232.51 = 72,917.20/x
  3. Step 3: Cross multiply
    118,318.24x = 163,232.51 × 72,917.20
  4. Step 4: Simplify right side
    118,318.24x = 11,902,457,578.17
  5. Step 5: Solve for x
    x = 11,902,457,578.17/118,318.24
  6. Step 6: Final answer
    x = 100,596.98

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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.