Home / 118,455.57-163,362.87-98,280.50

Finding the Fourth Proportional to 118,455.57, 163,362.87 and 98,280.50

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Solution

The fourth proportional to 118,455.57, 163,362.87 and 98,280.50 is: 135,539.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,455.57 : 163,362.87 = 98,280.50 : x
  2. Step 2: Convert to fraction form
    118,455.57/163,362.87 = 98,280.50/x
  3. Step 3: Cross multiply
    118,455.57x = 163,362.87 × 98,280.50
  4. Step 4: Simplify right side
    118,455.57x = 16,055,383,728.22
  5. Step 5: Solve for x
    x = 16,055,383,728.22/118,455.57
  6. Step 6: Final answer
    x = 135,539.29

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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.