Home / 185,485.98-278,135.42-132,147.48

Finding the Fourth Proportional to 185,485.98, 278,135.42 and 132,147.48

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Solution

The fourth proportional to 185,485.98, 278,135.42 and 132,147.48 is: 198,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,485.98 : 278,135.42 = 132,147.48 : x
  2. Step 2: Convert to fraction form
    185,485.98/278,135.42 = 132,147.48/x
  3. Step 3: Cross multiply
    185,485.98x = 278,135.42 × 132,147.48
  4. Step 4: Simplify right side
    185,485.98x = 36,754,895,977.34
  5. Step 5: Solve for x
    x = 36,754,895,977.34/185,485.98
  6. Step 6: Final answer
    x = 198,154.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.