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Finding the Fourth Proportional to 101,561.52, 152,378.80 and 45,396.96

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Solution

The fourth proportional to 101,561.52, 152,378.80 and 45,396.96 is: 68,111.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,561.52 : 152,378.80 = 45,396.96 : x
  2. Step 2: Convert to fraction form
    101,561.52/152,378.80 = 45,396.96/x
  3. Step 3: Cross multiply
    101,561.52x = 152,378.80 × 45,396.96
  4. Step 4: Simplify right side
    101,561.52x = 6,917,534,288.45
  5. Step 5: Solve for x
    x = 6,917,534,288.45/101,561.52
  6. Step 6: Final answer
    x = 68,111.76

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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.