Home / 144,740.48-199,718.64-81,080.96

Finding the Fourth Proportional to 144,740.48, 199,718.64 and 81,080.96

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Solution

The fourth proportional to 144,740.48, 199,718.64 and 81,080.96 is: 111,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,740.48 : 199,718.64 = 81,080.96 : x
  2. Step 2: Convert to fraction form
    144,740.48/199,718.64 = 81,080.96/x
  3. Step 3: Cross multiply
    144,740.48x = 199,718.64 × 81,080.96
  4. Step 4: Simplify right side
    144,740.48x = 16,193,379,061.09
  5. Step 5: Solve for x
    x = 16,193,379,061.09/144,740.48
  6. Step 6: Final answer
    x = 111,878.72

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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.