Home / 185,743.98-256,335.30-105,160.86

Finding the Fourth Proportional to 185,743.98, 256,335.30 and 105,160.86

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Solution

The fourth proportional to 185,743.98, 256,335.30 and 105,160.86 is: 145,126.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,743.98 : 256,335.30 = 105,160.86 : x
  2. Step 2: Convert to fraction form
    185,743.98/256,335.30 = 105,160.86/x
  3. Step 3: Cross multiply
    185,743.98x = 256,335.30 × 105,160.86
  4. Step 4: Simplify right side
    185,743.98x = 26,956,440,596.36
  5. Step 5: Solve for x
    x = 26,956,440,596.36/185,743.98
  6. Step 6: Final answer
    x = 145,126.86

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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.