Home / 147,571.72-221,280.72-52,765.36

Finding the Fourth Proportional to 147,571.72, 221,280.72 and 52,765.36

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Solution

The fourth proportional to 147,571.72, 221,280.72 and 52,765.36 is: 79,120.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,571.72 : 221,280.72 = 52,765.36 : x
  2. Step 2: Convert to fraction form
    147,571.72/221,280.72 = 52,765.36/x
  3. Step 3: Cross multiply
    147,571.72x = 221,280.72 × 52,765.36
  4. Step 4: Simplify right side
    147,571.72x = 11,675,956,851.86
  5. Step 5: Solve for x
    x = 11,675,956,851.86/147,571.72
  6. Step 6: Final answer
    x = 79,120.56

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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.