Home / 102,529.40-153,794.10-91,815.80

Finding the Fourth Proportional to 102,529.40, 153,794.10 and 91,815.80

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Solution

The fourth proportional to 102,529.40, 153,794.10 and 91,815.80 is: 137,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,529.40 : 153,794.10 = 91,815.80 : x
  2. Step 2: Convert to fraction form
    102,529.40/153,794.10 = 91,815.80/x
  3. Step 3: Cross multiply
    102,529.40x = 153,794.10 × 91,815.80
  4. Step 4: Simplify right side
    102,529.40x = 14,120,728,326.78
  5. Step 5: Solve for x
    x = 14,120,728,326.78/102,529.40
  6. Step 6: Final answer
    x = 137,723.70

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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.