Home / 127,725.27-176,266.35-71,136.66

Finding the Fourth Proportional to 127,725.27, 176,266.35 and 71,136.66

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Solution

The fourth proportional to 127,725.27, 176,266.35 and 71,136.66 is: 98,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,725.27 : 176,266.35 = 71,136.66 : x
  2. Step 2: Convert to fraction form
    127,725.27/176,266.35 = 71,136.66/x
  3. Step 3: Cross multiply
    127,725.27x = 176,266.35 × 71,136.66
  4. Step 4: Simplify right side
    127,725.27x = 12,538,999,409.39
  5. Step 5: Solve for x
    x = 12,538,999,409.39/127,725.27
  6. Step 6: Final answer
    x = 98,171.64

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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.