Home / 129,279.03-193,918.57-40,539.38

Finding the Fourth Proportional to 129,279.03, 193,918.57 and 40,539.38

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Solution

The fourth proportional to 129,279.03, 193,918.57 and 40,539.38 is: 60,809.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,279.03 : 193,918.57 = 40,539.38 : x
  2. Step 2: Convert to fraction form
    129,279.03/193,918.57 = 40,539.38/x
  3. Step 3: Cross multiply
    129,279.03x = 193,918.57 × 40,539.38
  4. Step 4: Simplify right side
    129,279.03x = 7,861,338,598.29
  5. Step 5: Solve for x
    x = 7,861,338,598.29/129,279.03
  6. Step 6: Final answer
    x = 60,809.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.