Home / 156,984.19-235,476.45-57,145.21

Finding the Fourth Proportional to 156,984.19, 235,476.45 and 57,145.21

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Solution

The fourth proportional to 156,984.19, 235,476.45 and 57,145.21 is: 85,717.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,984.19 : 235,476.45 = 57,145.21 : x
  2. Step 2: Convert to fraction form
    156,984.19/235,476.45 = 57,145.21/x
  3. Step 3: Cross multiply
    156,984.19x = 235,476.45 × 57,145.21
  4. Step 4: Simplify right side
    156,984.19x = 13,456,351,185.30
  5. Step 5: Solve for x
    x = 13,456,351,185.30/156,984.19
  6. Step 6: Final answer
    x = 85,717.88

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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.