Home / 144,828.10-199,851.87-81,153.64

Finding the Fourth Proportional to 144,828.10, 199,851.87 and 81,153.64

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Solution

The fourth proportional to 144,828.10, 199,851.87 and 81,153.64 is: 111,985.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,828.10 : 199,851.87 = 81,153.64 : x
  2. Step 2: Convert to fraction form
    144,828.10/199,851.87 = 81,153.64/x
  3. Step 3: Cross multiply
    144,828.10x = 199,851.87 × 81,153.64
  4. Step 4: Simplify right side
    144,828.10x = 16,218,706,711.31
  5. Step 5: Solve for x
    x = 16,218,706,711.31/144,828.10
  6. Step 6: Final answer
    x = 111,985.91

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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.