Home / 127,328.21-190,729.87-74,577.77

Finding the Fourth Proportional to 127,328.21, 190,729.87 and 74,577.77

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Solution

The fourth proportional to 127,328.21, 190,729.87 and 74,577.77 is: 111,712.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,328.21 : 190,729.87 = 74,577.77 : x
  2. Step 2: Convert to fraction form
    127,328.21/190,729.87 = 74,577.77/x
  3. Step 3: Cross multiply
    127,328.21x = 190,729.87 × 74,577.77
  4. Step 4: Simplify right side
    127,328.21x = 14,224,207,236.90
  5. Step 5: Solve for x
    x = 14,224,207,236.90/127,328.21
  6. Step 6: Final answer
    x = 111,712.93

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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.