Home / 127,144.32-190,670.58-38,370.48

Finding the Fourth Proportional to 127,144.32, 190,670.58 and 38,370.48

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Solution

The fourth proportional to 127,144.32, 190,670.58 and 38,370.48 is: 57,541.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,144.32 : 190,670.58 = 38,370.48 : x
  2. Step 2: Convert to fraction form
    127,144.32/190,670.58 = 38,370.48/x
  3. Step 3: Cross multiply
    127,144.32x = 190,670.58 × 38,370.48
  4. Step 4: Simplify right side
    127,144.32x = 7,316,121,676.48
  5. Step 5: Solve for x
    x = 7,316,121,676.48/127,144.32
  6. Step 6: Final answer
    x = 57,541.87

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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.