Home / 102,923.20-154,399.20-43,758.40

Finding the Fourth Proportional to 102,923.20, 154,399.20 and 43,758.40

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Solution

The fourth proportional to 102,923.20, 154,399.20 and 43,758.40 is: 65,643.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,923.20 : 154,399.20 = 43,758.40 : x
  2. Step 2: Convert to fraction form
    102,923.20/154,399.20 = 43,758.40/x
  3. Step 3: Cross multiply
    102,923.20x = 154,399.20 × 43,758.40
  4. Step 4: Simplify right side
    102,923.20x = 6,756,261,953.28
  5. Step 5: Solve for x
    x = 6,756,261,953.28/102,923.20
  6. Step 6: Final answer
    x = 65,643.72

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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.