Home / 194,723.40-292,085.10-128,238.60

Finding the Fourth Proportional to 194,723.40, 292,085.10 and 128,238.60

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Solution

The fourth proportional to 194,723.40, 292,085.10 and 128,238.60 is: 192,357.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,723.40 : 292,085.10 = 128,238.60 : x
  2. Step 2: Convert to fraction form
    194,723.40/292,085.10 = 128,238.60/x
  3. Step 3: Cross multiply
    194,723.40x = 292,085.10 × 128,238.60
  4. Step 4: Simplify right side
    194,723.40x = 37,456,584,304.86
  5. Step 5: Solve for x
    x = 37,456,584,304.86/194,723.40
  6. Step 6: Final answer
    x = 192,357.90

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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.