Home / 156,763.34-235,113.54-76,766.84

Finding the Fourth Proportional to 156,763.34, 235,113.54 and 76,766.84

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Solution

The fourth proportional to 156,763.34, 235,113.54 and 76,766.84 is: 115,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,763.34 : 235,113.54 = 76,766.84 : x
  2. Step 2: Convert to fraction form
    156,763.34/235,113.54 = 76,766.84/x
  3. Step 3: Cross multiply
    156,763.34x = 235,113.54 × 76,766.84
  4. Step 4: Simplify right side
    156,763.34x = 18,048,923,507.01
  5. Step 5: Solve for x
    x = 18,048,923,507.01/156,763.34
  6. Step 6: Final answer
    x = 115,134.85

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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.