Home / 144,735.12-199,730.88-81,072.48

Finding the Fourth Proportional to 144,735.12, 199,730.88 and 81,072.48

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Solution

The fourth proportional to 144,735.12, 199,730.88 and 81,072.48 is: 111,878.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,735.12 : 199,730.88 = 81,072.48 : x
  2. Step 2: Convert to fraction form
    144,735.12/199,730.88 = 81,072.48/x
  3. Step 3: Cross multiply
    144,735.12x = 199,730.88 × 81,072.48
  4. Step 4: Simplify right side
    144,735.12x = 16,192,677,774.18
  5. Step 5: Solve for x
    x = 16,192,677,774.18/144,735.12
  6. Step 6: Final answer
    x = 111,878.01

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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.