Home / 275,127.66-412,639.02-85,590.38

Finding the Fourth Proportional to 275,127.66, 412,639.02 and 85,590.38

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Solution

The fourth proportional to 275,127.66, 412,639.02 and 85,590.38 is: 128,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,127.66 : 412,639.02 = 85,590.38 : x
  2. Step 2: Convert to fraction form
    275,127.66/412,639.02 = 85,590.38/x
  3. Step 3: Cross multiply
    275,127.66x = 412,639.02 × 85,590.38
  4. Step 4: Simplify right side
    275,127.66x = 35,317,930,524.63
  5. Step 5: Solve for x
    x = 35,317,930,524.63/275,127.66
  6. Step 6: Final answer
    x = 128,369.25

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1.5x scale

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.