Home / 84,823.70-127,235.55-80,935.70

Finding the Fourth Proportional to 84,823.70, 127,235.55 and 80,935.70

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Solution

The fourth proportional to 84,823.70, 127,235.55 and 80,935.70 is: 121,403.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,823.70 : 127,235.55 = 80,935.70 : x
  2. Step 2: Convert to fraction form
    84,823.70/127,235.55 = 80,935.70/x
  3. Step 3: Cross multiply
    84,823.70x = 127,235.55 × 80,935.70
  4. Step 4: Simplify right side
    84,823.70x = 10,297,898,304.14
  5. Step 5: Solve for x
    x = 10,297,898,304.14/84,823.70
  6. Step 6: Final answer
    x = 121,403.55

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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.