Home / 156,986.40-235,479.60-57,149.85

Finding the Fourth Proportional to 156,986.40, 235,479.60 and 57,149.85

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Solution

The fourth proportional to 156,986.40, 235,479.60 and 57,149.85 is: 85,724.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,986.40 : 235,479.60 = 57,149.85 : x
  2. Step 2: Convert to fraction form
    156,986.40/235,479.60 = 57,149.85/x
  3. Step 3: Cross multiply
    156,986.40x = 235,479.60 × 57,149.85
  4. Step 4: Simplify right side
    156,986.40x = 13,457,623,818.06
  5. Step 5: Solve for x
    x = 13,457,623,818.06/156,986.40
  6. Step 6: Final answer
    x = 85,724.78

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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.