Home / 144,209.10-199,007.37-79,678.13

Finding the Fourth Proportional to 144,209.10, 199,007.37 and 79,678.13

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Solution

The fourth proportional to 144,209.10, 199,007.37 and 79,678.13 is: 109,955.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,209.10 : 199,007.37 = 79,678.13 : x
  2. Step 2: Convert to fraction form
    144,209.10/199,007.37 = 79,678.13/x
  3. Step 3: Cross multiply
    144,209.10x = 199,007.37 × 79,678.13
  4. Step 4: Simplify right side
    144,209.10x = 15,856,535,097.82
  5. Step 5: Solve for x
    x = 15,856,535,097.82/144,209.10
  6. Step 6: Final answer
    x = 109,955.16

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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.