Home / 102,554.08-153,830.41-55,191.45

Finding the Fourth Proportional to 102,554.08, 153,830.41 and 55,191.45

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Solution

The fourth proportional to 102,554.08, 153,830.41 and 55,191.45 is: 82,786.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,554.08 : 153,830.41 = 55,191.45 : x
  2. Step 2: Convert to fraction form
    102,554.08/153,830.41 = 55,191.45/x
  3. Step 3: Cross multiply
    102,554.08x = 153,830.41 × 55,191.45
  4. Step 4: Simplify right side
    102,554.08x = 8,490,122,336.89
  5. Step 5: Solve for x
    x = 8,490,122,336.89/102,554.08
  6. Step 6: Final answer
    x = 82,786.79

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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.