Home / 144,212.85-199,012.53-79,681.88

Finding the Fourth Proportional to 144,212.85, 199,012.53 and 79,681.88

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Solution

The fourth proportional to 144,212.85, 199,012.53 and 79,681.88 is: 109,960.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,212.85 : 199,012.53 = 79,681.88 : x
  2. Step 2: Convert to fraction form
    144,212.85/199,012.53 = 79,681.88/x
  3. Step 3: Cross multiply
    144,212.85x = 199,012.53 × 79,681.88
  4. Step 4: Simplify right side
    144,212.85x = 15,857,692,533.96
  5. Step 5: Solve for x
    x = 15,857,692,533.96/144,212.85
  6. Step 6: Final answer
    x = 109,960.33

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1.5x scale

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.