Home / 149,102.40-205,682.90-88,630.03

Finding the Fourth Proportional to 149,102.40, 205,682.90 and 88,630.03

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Solution

The fourth proportional to 149,102.40, 205,682.90 and 88,630.03 is: 122,262.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,102.40 : 205,682.90 = 88,630.03 : x
  2. Step 2: Convert to fraction form
    149,102.40/205,682.90 = 88,630.03/x
  3. Step 3: Cross multiply
    149,102.40x = 205,682.90 × 88,630.03
  4. Step 4: Simplify right side
    149,102.40x = 18,229,681,411.44
  5. Step 5: Solve for x
    x = 18,229,681,411.44/149,102.40
  6. Step 6: Final answer
    x = 122,262.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.