Home / 144,431.78-199,312.13-79,899.35

Finding the Fourth Proportional to 144,431.78, 199,312.13 and 79,899.35

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Solution

The fourth proportional to 144,431.78, 199,312.13 and 79,899.35 is: 110,259.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,431.78 : 199,312.13 = 79,899.35 : x
  2. Step 2: Convert to fraction form
    144,431.78/199,312.13 = 79,899.35/x
  3. Step 3: Cross multiply
    144,431.78x = 199,312.13 × 79,899.35
  4. Step 4: Simplify right side
    144,431.78x = 15,924,910,332.14
  5. Step 5: Solve for x
    x = 15,924,910,332.14/144,431.78
  6. Step 6: Final answer
    x = 110,259.04

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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.