Home / 149,500.30-206,360.40-89,089.89

Finding the Fourth Proportional to 149,500.30, 206,360.40 and 89,089.89

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Solution

The fourth proportional to 149,500.30, 206,360.40 and 89,089.89 is: 122,973.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,500.30 : 206,360.40 = 89,089.89 : x
  2. Step 2: Convert to fraction form
    149,500.30/206,360.40 = 89,089.89/x
  3. Step 3: Cross multiply
    149,500.30x = 206,360.40 × 89,089.89
  4. Step 4: Simplify right side
    149,500.30x = 18,384,625,336.36
  5. Step 5: Solve for x
    x = 18,384,625,336.36/149,500.30
  6. Step 6: Final answer
    x = 122,973.84

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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.