Home / 127,606.78-191,369.35-42,201.77

Finding the Fourth Proportional to 127,606.78, 191,369.35 and 42,201.77

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Solution

The fourth proportional to 127,606.78, 191,369.35 and 42,201.77 is: 63,289.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,606.78 : 191,369.35 = 42,201.77 : x
  2. Step 2: Convert to fraction form
    127,606.78/191,369.35 = 42,201.77/x
  3. Step 3: Cross multiply
    127,606.78x = 191,369.35 × 42,201.77
  4. Step 4: Simplify right side
    127,606.78x = 8,076,125,293.75
  5. Step 5: Solve for x
    x = 8,076,125,293.75/127,606.78
  6. Step 6: Final answer
    x = 63,289.16

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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.