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Finding the Fourth Proportional to 144,710.92, 199,699.32 and 84,291.40

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Solution

The fourth proportional to 144,710.92, 199,699.32 and 84,291.40 is: 116,321.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,710.92 : 199,699.32 = 84,291.40 : x
  2. Step 2: Convert to fraction form
    144,710.92/199,699.32 = 84,291.40/x
  3. Step 3: Cross multiply
    144,710.92x = 199,699.32 × 84,291.40
  4. Step 4: Simplify right side
    144,710.92x = 16,832,935,261.85
  5. Step 5: Solve for x
    x = 16,832,935,261.85/144,710.92
  6. Step 6: Final answer
    x = 116,321.11

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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.