Home / 148,423.14-204,821.64-80,438.22

Finding the Fourth Proportional to 148,423.14, 204,821.64 and 80,438.22

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Solution

The fourth proportional to 148,423.14, 204,821.64 and 80,438.22 is: 111,003.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,423.14 : 204,821.64 = 80,438.22 : x
  2. Step 2: Convert to fraction form
    148,423.14/204,821.64 = 80,438.22/x
  3. Step 3: Cross multiply
    148,423.14x = 204,821.64 × 80,438.22
  4. Step 4: Simplify right side
    148,423.14x = 16,475,488,139.08
  5. Step 5: Solve for x
    x = 16,475,488,139.08/148,423.14
  6. Step 6: Final answer
    x = 111,003.50

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1.5x scale

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.