Home / 148,412.70-204,809.07-80,431.62

Finding the Fourth Proportional to 148,412.70, 204,809.07 and 80,431.62

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Solution

The fourth proportional to 148,412.70, 204,809.07 and 80,431.62 is: 110,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,412.70 : 204,809.07 = 80,431.62 : x
  2. Step 2: Convert to fraction form
    148,412.70/204,809.07 = 80,431.62/x
  3. Step 3: Cross multiply
    148,412.70x = 204,809.07 × 80,431.62
  4. Step 4: Simplify right side
    148,412.70x = 16,473,125,290.79
  5. Step 5: Solve for x
    x = 16,473,125,290.79/148,412.70
  6. Step 6: Final answer
    x = 110,995.39

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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.