Home / 127,234.35-190,851.53-121,985.55

Finding the Fourth Proportional to 127,234.35, 190,851.53 and 121,985.55

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Solution

The fourth proportional to 127,234.35, 190,851.53 and 121,985.55 is: 182,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,234.35 : 190,851.53 = 121,985.55 : x
  2. Step 2: Convert to fraction form
    127,234.35/190,851.53 = 121,985.55/x
  3. Step 3: Cross multiply
    127,234.35x = 190,851.53 × 121,985.55
  4. Step 4: Simplify right side
    127,234.35x = 23,281,128,245.46
  5. Step 5: Solve for x
    x = 23,281,128,245.46/127,234.35
  6. Step 6: Final answer
    x = 182,978.33

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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.