Home / 148,829.58-205,386.98-80,847.81

Finding the Fourth Proportional to 148,829.58, 205,386.98 and 80,847.81

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Solution

The fourth proportional to 148,829.58, 205,386.98 and 80,847.81 is: 111,571.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,829.58 : 205,386.98 = 80,847.81 : x
  2. Step 2: Convert to fraction form
    148,829.58/205,386.98 = 80,847.81/x
  3. Step 3: Cross multiply
    148,829.58x = 205,386.98 × 80,847.81
  4. Step 4: Simplify right side
    148,829.58x = 16,605,087,131.27
  5. Step 5: Solve for x
    x = 16,605,087,131.27/148,829.58
  6. Step 6: Final answer
    x = 111,571.15

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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.