Home / 148,968.21-205,577.01-80,985.72

Finding the Fourth Proportional to 148,968.21, 205,577.01 and 80,985.72

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Solution

The fourth proportional to 148,968.21, 205,577.01 and 80,985.72 is: 111,760.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,968.21 : 205,577.01 = 80,985.72 : x
  2. Step 2: Convert to fraction form
    148,968.21/205,577.01 = 80,985.72/x
  3. Step 3: Cross multiply
    148,968.21x = 205,577.01 × 80,985.72
  4. Step 4: Simplify right side
    148,968.21x = 16,648,802,170.30
  5. Step 5: Solve for x
    x = 16,648,802,170.30/148,968.21
  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.