Home / 154,478.07-231,804.68-83,399.76

Finding the Fourth Proportional to 154,478.07, 231,804.68 and 83,399.76

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Solution

The fourth proportional to 154,478.07, 231,804.68 and 83,399.76 is: 125,146.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,478.07 : 231,804.68 = 83,399.76 : x
  2. Step 2: Convert to fraction form
    154,478.07/231,804.68 = 83,399.76/x
  3. Step 3: Cross multiply
    154,478.07x = 231,804.68 × 83,399.76
  4. Step 4: Simplify right side
    154,478.07x = 19,332,454,261.88
  5. Step 5: Solve for x
    x = 19,332,454,261.88/154,478.07
  6. Step 6: Final answer
    x = 125,146.92

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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.