Home / 154,180.80-231,125.40-91,049.40

Finding the Fourth Proportional to 154,180.80, 231,125.40 and 91,049.40

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Solution

The fourth proportional to 154,180.80, 231,125.40 and 91,049.40 is: 136,488.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,180.80 : 231,125.40 = 91,049.40 : x
  2. Step 2: Convert to fraction form
    154,180.80/231,125.40 = 91,049.40/x
  3. Step 3: Cross multiply
    154,180.80x = 231,125.40 × 91,049.40
  4. Step 4: Simplify right side
    154,180.80x = 21,043,828,994.76
  5. Step 5: Solve for x
    x = 21,043,828,994.76/154,180.80
  6. Step 6: Final answer
    x = 136,488.00

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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.