Home / 148,289.51-204,639.21-80,306.28

Finding the Fourth Proportional to 148,289.51, 204,639.21 and 80,306.28

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Solution

The fourth proportional to 148,289.51, 204,639.21 and 80,306.28 is: 110,822.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,289.51 : 204,639.21 = 80,306.28 : x
  2. Step 2: Convert to fraction form
    148,289.51/204,639.21 = 80,306.28/x
  3. Step 3: Cross multiply
    148,289.51x = 204,639.21 × 80,306.28
  4. Step 4: Simplify right side
    148,289.51x = 16,433,812,674.04
  5. Step 5: Solve for x
    x = 16,433,812,674.04/148,289.51
  6. Step 6: Final answer
    x = 110,822.49

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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.