Home / 148,804.28-205,349.20-80,820.72

Finding the Fourth Proportional to 148,804.28, 205,349.20 and 80,820.72

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Solution

The fourth proportional to 148,804.28, 205,349.20 and 80,820.72 is: 111,532.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,804.28 : 205,349.20 = 80,820.72 : x
  2. Step 2: Convert to fraction form
    148,804.28/205,349.20 = 80,820.72/x
  3. Step 3: Cross multiply
    148,804.28x = 205,349.20 × 80,820.72
  4. Step 4: Simplify right side
    148,804.28x = 16,596,470,195.42
  5. Step 5: Solve for x
    x = 16,596,470,195.42/148,804.28
  6. Step 6: Final answer
    x = 111,532.21

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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.