Home / 148,880.16-205,454.88-80,896.50

Finding the Fourth Proportional to 148,880.16, 205,454.88 and 80,896.50

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Solution

The fourth proportional to 148,880.16, 205,454.88 and 80,896.50 is: 111,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,880.16 : 205,454.88 = 80,896.50 : x
  2. Step 2: Convert to fraction form
    148,880.16/205,454.88 = 80,896.50/x
  3. Step 3: Cross multiply
    148,880.16x = 205,454.88 × 80,896.50
  4. Step 4: Simplify right side
    148,880.16x = 16,620,580,699.92
  5. Step 5: Solve for x
    x = 16,620,580,699.92/148,880.16
  6. Step 6: Final answer
    x = 111,637.31

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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.