Home / 103,024.20-154,682.10-80,862.60

Finding the Fourth Proportional to 103,024.20, 154,682.10 and 80,862.60

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Solution

The fourth proportional to 103,024.20, 154,682.10 and 80,862.60 is: 121,408.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,024.20 : 154,682.10 = 80,862.60 : x
  2. Step 2: Convert to fraction form
    103,024.20/154,682.10 = 80,862.60/x
  3. Step 3: Cross multiply
    103,024.20x = 154,682.10 × 80,862.60
  4. Step 4: Simplify right side
    103,024.20x = 12,507,996,779.46
  5. Step 5: Solve for x
    x = 12,507,996,779.46/103,024.20
  6. Step 6: Final answer
    x = 121,408.34

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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.