Home / 144,261.39-199,136.28-129,127.35

Finding the Fourth Proportional to 144,261.39, 199,136.28 and 129,127.35

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Solution

The fourth proportional to 144,261.39, 199,136.28 and 129,127.35 is: 178,245.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,261.39 : 199,136.28 = 129,127.35 : x
  2. Step 2: Convert to fraction form
    144,261.39/199,136.28 = 129,127.35/x
  3. Step 3: Cross multiply
    144,261.39x = 199,136.28 × 129,127.35
  4. Step 4: Simplify right side
    144,261.39x = 25,713,940,125.26
  5. Step 5: Solve for x
    x = 25,713,940,125.26/144,261.39
  6. Step 6: Final answer
    x = 178,245.48

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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.