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Finding the Fourth Proportional to 101,329.56, 152,023.62 and 31,219.20

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Solution

The fourth proportional to 101,329.56, 152,023.62 and 31,219.20 is: 46,837.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,329.56 : 152,023.62 = 31,219.20 : x
  2. Step 2: Convert to fraction form
    101,329.56/152,023.62 = 31,219.20/x
  3. Step 3: Cross multiply
    101,329.56x = 152,023.62 × 31,219.20
  4. Step 4: Simplify right side
    101,329.56x = 4,746,055,797.50
  5. Step 5: Solve for x
    x = 4,746,055,797.50/101,329.56
  6. Step 6: Final answer
    x = 46,837.82

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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.