Home / 127,607.78-191,370.84-42,202.76

Finding the Fourth Proportional to 127,607.78, 191,370.84 and 42,202.76

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Solution

The fourth proportional to 127,607.78, 191,370.84 and 42,202.76 is: 63,290.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,607.78 : 191,370.84 = 42,202.76 : x
  2. Step 2: Convert to fraction form
    127,607.78/191,370.84 = 42,202.76/x
  3. Step 3: Cross multiply
    127,607.78x = 191,370.84 × 42,202.76
  4. Step 4: Simplify right side
    127,607.78x = 8,076,377,631.52
  5. Step 5: Solve for x
    x = 8,076,377,631.52/127,607.78
  6. Step 6: Final answer
    x = 63,290.64

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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.