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Finding the Fourth Proportional to 104,628, 144,388.08 and 56,881.36

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Solution

The fourth proportional to 104,628, 144,388.08 and 56,881.36 is: 78,497.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,628 : 144,388.08 = 56,881.36 : x
  2. Step 2: Convert to fraction form
    104,628/144,388.08 = 56,881.36/x
  3. Step 3: Cross multiply
    104,628x = 144,388.08 × 56,881.36
  4. Step 4: Simplify right side
    104,628x = 8,212,990,358.19
  5. Step 5: Solve for x
    x = 8,212,990,358.19/104,628
  6. Step 6: Final answer
    x = 78,497.06

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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.