Home / 127,172.70-190,789.02-38,426.94

Finding the Fourth Proportional to 127,172.70, 190,789.02 and 38,426.94

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Solution

The fourth proportional to 127,172.70, 190,789.02 and 38,426.94 is: 57,649.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,172.70 : 190,789.02 = 38,426.94 : x
  2. Step 2: Convert to fraction form
    127,172.70/190,789.02 = 38,426.94/x
  3. Step 3: Cross multiply
    127,172.70x = 190,789.02 × 38,426.94
  4. Step 4: Simplify right side
    127,172.70x = 7,331,438,224.20
  5. Step 5: Solve for x
    x = 7,331,438,224.20/127,172.70
  6. Step 6: Final answer
    x = 57,649.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.