Home / 154,048.40-231,072.60-43,240.40

Finding the Fourth Proportional to 154,048.40, 231,072.60 and 43,240.40

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Solution

The fourth proportional to 154,048.40, 231,072.60 and 43,240.40 is: 64,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,048.40 : 231,072.60 = 43,240.40 : x
  2. Step 2: Convert to fraction form
    154,048.40/231,072.60 = 43,240.40/x
  3. Step 3: Cross multiply
    154,048.40x = 231,072.60 × 43,240.40
  4. Step 4: Simplify right side
    154,048.40x = 9,991,671,653.04
  5. Step 5: Solve for x
    x = 9,991,671,653.04/154,048.40
  6. Step 6: Final answer
    x = 64,860.60

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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.