Home / 104,421.90-156,681.45-54,558.30

Finding the Fourth Proportional to 104,421.90, 156,681.45 and 54,558.30

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Solution

The fourth proportional to 104,421.90, 156,681.45 and 54,558.30 is: 81,862.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,421.90 : 156,681.45 = 54,558.30 : x
  2. Step 2: Convert to fraction form
    104,421.90/156,681.45 = 54,558.30/x
  3. Step 3: Cross multiply
    104,421.90x = 156,681.45 × 54,558.30
  4. Step 4: Simplify right side
    104,421.90x = 8,548,273,553.54
  5. Step 5: Solve for x
    x = 8,548,273,553.54/104,421.90
  6. Step 6: Final answer
    x = 81,862.84

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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.