Home / 127,621.78-191,460.48-48,758.56

Finding the Fourth Proportional to 127,621.78, 191,460.48 and 48,758.56

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Solution

The fourth proportional to 127,621.78, 191,460.48 and 48,758.56 is: 73,148.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,621.78 : 191,460.48 = 48,758.56 : x
  2. Step 2: Convert to fraction form
    127,621.78/191,460.48 = 48,758.56/x
  3. Step 3: Cross multiply
    127,621.78x = 191,460.48 × 48,758.56
  4. Step 4: Simplify right side
    127,621.78x = 9,335,337,301.71
  5. Step 5: Solve for x
    x = 9,335,337,301.71/127,621.78
  6. Step 6: Final answer
    x = 73,148.46

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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.