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Finding the Fourth Proportional to 101,420.82, 152,178.62 and 45,255.06

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Solution

The fourth proportional to 101,420.82, 152,178.62 and 45,255.06 is: 67,903.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,420.82 : 152,178.62 = 45,255.06 : x
  2. Step 2: Convert to fraction form
    101,420.82/152,178.62 = 45,255.06/x
  3. Step 3: Cross multiply
    101,420.82x = 152,178.62 × 45,255.06
  4. Step 4: Simplify right side
    101,420.82x = 6,886,852,352.54
  5. Step 5: Solve for x
    x = 6,886,852,352.54/101,420.82
  6. Step 6: Final answer
    x = 67,903.73

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1.5x scale

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.