Home / 154,087.80-231,131.70-79,103.40

Finding the Fourth Proportional to 154,087.80, 231,131.70 and 79,103.40

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Solution

The fourth proportional to 154,087.80, 231,131.70 and 79,103.40 is: 118,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,087.80 : 231,131.70 = 79,103.40 : x
  2. Step 2: Convert to fraction form
    154,087.80/231,131.70 = 79,103.40/x
  3. Step 3: Cross multiply
    154,087.80x = 231,131.70 × 79,103.40
  4. Step 4: Simplify right side
    154,087.80x = 18,283,303,317.78
  5. Step 5: Solve for x
    x = 18,283,303,317.78/154,087.80
  6. Step 6: Final answer
    x = 118,655.10

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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.