Home / 154,139.80-231,209.70-48,969.40

Finding the Fourth Proportional to 154,139.80, 231,209.70 and 48,969.40

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Solution

The fourth proportional to 154,139.80, 231,209.70 and 48,969.40 is: 73,454.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,139.80 : 231,209.70 = 48,969.40 : x
  2. Step 2: Convert to fraction form
    154,139.80/231,209.70 = 48,969.40/x
  3. Step 3: Cross multiply
    154,139.80x = 231,209.70 × 48,969.40
  4. Step 4: Simplify right side
    154,139.80x = 11,322,200,283.18
  5. Step 5: Solve for x
    x = 11,322,200,283.18/154,139.80
  6. Step 6: Final answer
    x = 73,454.10

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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.