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Finding the Fourth Proportional to 104,720, 144,512.48 and 62,277.68

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Solution

The fourth proportional to 104,720, 144,512.48 and 62,277.68 is: 85,942.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,720 : 144,512.48 = 62,277.68 : x
  2. Step 2: Convert to fraction form
    104,720/144,512.48 = 62,277.68/x
  3. Step 3: Cross multiply
    104,720x = 144,512.48 × 62,277.68
  4. Step 4: Simplify right side
    104,720x = 8,999,901,985.45
  5. Step 5: Solve for x
    x = 8,999,901,985.45/104,720
  6. Step 6: Final answer
    x = 85,942.53

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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.