Home / 148,710.80-205,170.96-85,003.52

Finding the Fourth Proportional to 148,710.80, 205,170.96 and 85,003.52

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Solution

The fourth proportional to 148,710.80, 205,170.96 and 85,003.52 is: 117,276.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,710.80 : 205,170.96 = 85,003.52 : x
  2. Step 2: Convert to fraction form
    148,710.80/205,170.96 = 85,003.52/x
  3. Step 3: Cross multiply
    148,710.80x = 205,170.96 × 85,003.52
  4. Step 4: Simplify right side
    148,710.80x = 17,440,253,801.78
  5. Step 5: Solve for x
    x = 17,440,253,801.78/148,710.80
  6. Step 6: Final answer
    x = 117,276.31

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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.