Home / 149,729.20-206,599.08-89,303.20

Finding the Fourth Proportional to 149,729.20, 206,599.08 and 89,303.20

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Solution

The fourth proportional to 149,729.20, 206,599.08 and 89,303.20 is: 123,222.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,729.20 : 206,599.08 = 89,303.20 : x
  2. Step 2: Convert to fraction form
    149,729.20/206,599.08 = 89,303.20/x
  3. Step 3: Cross multiply
    149,729.20x = 206,599.08 × 89,303.20
  4. Step 4: Simplify right side
    149,729.20x = 18,449,958,961.06
  5. Step 5: Solve for x
    x = 18,449,958,961.06/149,729.20
  6. Step 6: Final answer
    x = 123,222.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.