Home / 140,671.48-194,139.84-84,081.64

Finding the Fourth Proportional to 140,671.48, 194,139.84 and 84,081.64

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Solution

The fourth proportional to 140,671.48, 194,139.84 and 84,081.64 is: 116,040.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,671.48 : 194,139.84 = 84,081.64 : x
  2. Step 2: Convert to fraction form
    140,671.48/194,139.84 = 84,081.64/x
  3. Step 3: Cross multiply
    140,671.48x = 194,139.84 × 84,081.64
  4. Step 4: Simplify right side
    140,671.48x = 16,323,596,136.54
  5. Step 5: Solve for x
    x = 16,323,596,136.54/140,671.48
  6. Step 6: Final answer
    x = 116,040.55

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1.5x scale

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.