Home / 144,137.84-198,908.36-80,476.72

Finding the Fourth Proportional to 144,137.84, 198,908.36 and 80,476.72

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Solution

The fourth proportional to 144,137.84, 198,908.36 and 80,476.72 is: 111,056.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,137.84 : 198,908.36 = 80,476.72 : x
  2. Step 2: Convert to fraction form
    144,137.84/198,908.36 = 80,476.72/x
  3. Step 3: Cross multiply
    144,137.84x = 198,908.36 × 80,476.72
  4. Step 4: Simplify right side
    144,137.84x = 16,007,492,393.38
  5. Step 5: Solve for x
    x = 16,007,492,393.38/144,137.84
  6. Step 6: Final answer
    x = 111,056.84

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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.