Home / 148,968.36-205,573.86-80,987.04

Finding the Fourth Proportional to 148,968.36, 205,573.86 and 80,987.04

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Solution

The fourth proportional to 148,968.36, 205,573.86 and 80,987.04 is: 111,760.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,968.36 : 205,573.86 = 80,987.04 : x
  2. Step 2: Convert to fraction form
    148,968.36/205,573.86 = 80,987.04/x
  3. Step 3: Cross multiply
    148,968.36x = 205,573.86 × 80,987.04
  4. Step 4: Simplify right side
    148,968.36x = 16,648,818,422.77
  5. Step 5: Solve for x
    x = 16,648,818,422.77/148,968.36
  6. Step 6: Final answer
    x = 111,760.77

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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.