Home / 127,278-190,917.63-43,038.72

Finding the Fourth Proportional to 127,278, 190,917.63 and 43,038.72

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Solution

The fourth proportional to 127,278, 190,917.63 and 43,038.72 is: 64,558.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,278 : 190,917.63 = 43,038.72 : x
  2. Step 2: Convert to fraction form
    127,278/190,917.63 = 43,038.72/x
  3. Step 3: Cross multiply
    127,278x = 190,917.63 × 43,038.72
  4. Step 4: Simplify right side
    127,278x = 8,216,850,420.63
  5. Step 5: Solve for x
    x = 8,216,850,420.63/127,278
  6. Step 6: Final answer
    x = 64,558.29

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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.