Home / 185,899.61-256,540.79-105,342.53

Finding the Fourth Proportional to 185,899.61, 256,540.79 and 105,342.53

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Solution

The fourth proportional to 185,899.61, 256,540.79 and 105,342.53 is: 145,372.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,899.61 : 256,540.79 = 105,342.53 : x
  2. Step 2: Convert to fraction form
    185,899.61/256,540.79 = 105,342.53/x
  3. Step 3: Cross multiply
    185,899.61x = 256,540.79 × 105,342.53
  4. Step 4: Simplify right side
    185,899.61x = 27,024,655,697.94
  5. Step 5: Solve for x
    x = 27,024,655,697.94/185,899.61
  6. Step 6: Final answer
    x = 145,372.31

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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.