Home / 127,725.05-176,266.01-71,136.43

Finding the Fourth Proportional to 127,725.05, 176,266.01 and 71,136.43

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Solution

The fourth proportional to 127,725.05, 176,266.01 and 71,136.43 is: 98,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,725.05 : 176,266.01 = 71,136.43 : x
  2. Step 2: Convert to fraction form
    127,725.05/176,266.01 = 71,136.43/x
  3. Step 3: Cross multiply
    127,725.05x = 176,266.01 × 71,136.43
  4. Step 4: Simplify right side
    127,725.05x = 12,538,934,681.74
  5. Step 5: Solve for x
    x = 12,538,934,681.74/127,725.05
  6. Step 6: Final answer
    x = 98,171.30

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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.