Home / 144,261.64-199,136.62-129,127.60

Finding the Fourth Proportional to 144,261.64, 199,136.62 and 129,127.60

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Solution

The fourth proportional to 144,261.64, 199,136.62 and 129,127.60 is: 178,245.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,261.64 : 199,136.62 = 129,127.60 : x
  2. Step 2: Convert to fraction form
    144,261.64/199,136.62 = 129,127.60/x
  3. Step 3: Cross multiply
    144,261.64x = 199,136.62 × 129,127.60
  4. Step 4: Simplify right side
    144,261.64x = 25,714,033,812.71
  5. Step 5: Solve for x
    x = 25,714,033,812.71/144,261.64
  6. Step 6: Final answer
    x = 178,245.82

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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.