Home / 144,830.13-199,873.80-81,172.04

Finding the Fourth Proportional to 144,830.13, 199,873.80 and 81,172.04

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Solution

The fourth proportional to 144,830.13, 199,873.80 and 81,172.04 is: 112,022.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,830.13 : 199,873.80 = 81,172.04 : x
  2. Step 2: Convert to fraction form
    144,830.13/199,873.80 = 81,172.04/x
  3. Step 3: Cross multiply
    144,830.13x = 199,873.80 × 81,172.04
  4. Step 4: Simplify right side
    144,830.13x = 16,224,163,089.18
  5. Step 5: Solve for x
    x = 16,224,163,089.18/144,830.13
  6. Step 6: Final answer
    x = 112,022.02

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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.