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Finding the Fourth Proportional to 144,072.88, 216,109.08 and 80,071.74

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Solution

The fourth proportional to 144,072.88, 216,109.08 and 80,071.74 is: 120,107.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,072.88 : 216,109.08 = 80,071.74 : x
  2. Step 2: Convert to fraction form
    144,072.88/216,109.08 = 80,071.74/x
  3. Step 3: Cross multiply
    144,072.88x = 216,109.08 × 80,071.74
  4. Step 4: Simplify right side
    144,072.88x = 17,304,230,065.40
  5. Step 5: Solve for x
    x = 17,304,230,065.40/144,072.88
  6. Step 6: Final answer
    x = 120,107.48

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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.