Home / 127,129.05-190,724.43-38,377.26

Finding the Fourth Proportional to 127,129.05, 190,724.43 and 38,377.26

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Solution

The fourth proportional to 127,129.05, 190,724.43 and 38,377.26 is: 57,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,129.05 : 190,724.43 = 38,377.26 : x
  2. Step 2: Convert to fraction form
    127,129.05/190,724.43 = 38,377.26/x
  3. Step 3: Cross multiply
    127,129.05x = 190,724.43 × 38,377.26
  4. Step 4: Simplify right side
    127,129.05x = 7,319,481,038.46
  5. Step 5: Solve for x
    x = 7,319,481,038.46/127,129.05
  6. Step 6: Final answer
    x = 57,575.20

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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.