Home / 144,821.52-199,856.16-81,155.52

Finding the Fourth Proportional to 144,821.52, 199,856.16 and 81,155.52

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Solution

The fourth proportional to 144,821.52, 199,856.16 and 81,155.52 is: 111,996.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,821.52 : 199,856.16 = 81,155.52 : x
  2. Step 2: Convert to fraction form
    144,821.52/199,856.16 = 81,155.52/x
  3. Step 3: Cross multiply
    144,821.52x = 199,856.16 × 81,155.52
  4. Step 4: Simplify right side
    144,821.52x = 16,219,430,590.00
  5. Step 5: Solve for x
    x = 16,219,430,590.00/144,821.52
  6. Step 6: Final answer
    x = 111,996.00

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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.