Home / 118,202.36-163,155.64-72,894.56

Finding the Fourth Proportional to 118,202.36, 163,155.64 and 72,894.56

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Solution

The fourth proportional to 118,202.36, 163,155.64 and 72,894.56 is: 100,616.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,202.36 : 163,155.64 = 72,894.56 : x
  2. Step 2: Convert to fraction form
    118,202.36/163,155.64 = 72,894.56/x
  3. Step 3: Cross multiply
    118,202.36x = 163,155.64 × 72,894.56
  4. Step 4: Simplify right side
    118,202.36x = 11,893,158,589.32
  5. Step 5: Solve for x
    x = 11,893,158,589.32/118,202.36
  6. Step 6: Final answer
    x = 100,616.93

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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.