Home / 102,658.92-154,261.74-55,310.36

Finding the Fourth Proportional to 102,658.92, 154,261.74 and 55,310.36

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Solution

The fourth proportional to 102,658.92, 154,261.74 and 55,310.36 is: 83,112.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,658.92 : 154,261.74 = 55,310.36 : x
  2. Step 2: Convert to fraction form
    102,658.92/154,261.74 = 55,310.36/x
  3. Step 3: Cross multiply
    102,658.92x = 154,261.74 × 55,310.36
  4. Step 4: Simplify right side
    102,658.92x = 8,532,272,373.63
  5. Step 5: Solve for x
    x = 8,532,272,373.63/102,658.92
  6. Step 6: Final answer
    x = 83,112.82

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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.