Home / 101,611.12-152,392.20-30,518.80

Finding the Fourth Proportional to 101,611.12, 152,392.20 and 30,518.80

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Solution

The fourth proportional to 101,611.12, 152,392.20 and 30,518.80 is: 45,770.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,611.12 : 152,392.20 = 30,518.80 : x
  2. Step 2: Convert to fraction form
    101,611.12/152,392.20 = 30,518.80/x
  3. Step 3: Cross multiply
    101,611.12x = 152,392.20 × 30,518.80
  4. Step 4: Simplify right side
    101,611.12x = 4,650,827,073.36
  5. Step 5: Solve for x
    x = 4,650,827,073.36/101,611.12
  6. Step 6: Final answer
    x = 45,770.85

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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.