Home / 195,429.20-293,012.40-77,039.60

Finding the Fourth Proportional to 195,429.20, 293,012.40 and 77,039.60

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Solution

The fourth proportional to 195,429.20, 293,012.40 and 77,039.60 is: 115,507.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,429.20 : 293,012.40 = 77,039.60 : x
  2. Step 2: Convert to fraction form
    195,429.20/293,012.40 = 77,039.60/x
  3. Step 3: Cross multiply
    195,429.20x = 293,012.40 × 77,039.60
  4. Step 4: Simplify right side
    195,429.20x = 22,573,558,091.04
  5. Step 5: Solve for x
    x = 22,573,558,091.04/195,429.20
  6. Step 6: Final answer
    x = 115,507.60

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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.