Home / 149,526.70-206,345.55-81,544.75

Finding the Fourth Proportional to 149,526.70, 206,345.55 and 81,544.75

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Solution

The fourth proportional to 149,526.70, 206,345.55 and 81,544.75 is: 112,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,526.70 : 206,345.55 = 81,544.75 : x
  2. Step 2: Convert to fraction form
    149,526.70/206,345.55 = 81,544.75/x
  3. Step 3: Cross multiply
    149,526.70x = 206,345.55 × 81,544.75
  4. Step 4: Simplify right side
    149,526.70x = 16,826,396,288.36
  5. Step 5: Solve for x
    x = 16,826,396,288.36/149,526.70
  6. Step 6: Final answer
    x = 112,531.05

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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.