Home / 156,723.90-235,085.85-45,915.90

Finding the Fourth Proportional to 156,723.90, 235,085.85 and 45,915.90

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Solution

The fourth proportional to 156,723.90, 235,085.85 and 45,915.90 is: 68,873.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,723.90 : 235,085.85 = 45,915.90 : x
  2. Step 2: Convert to fraction form
    156,723.90/235,085.85 = 45,915.90/x
  3. Step 3: Cross multiply
    156,723.90x = 235,085.85 × 45,915.90
  4. Step 4: Simplify right side
    156,723.90x = 10,794,178,380.02
  5. Step 5: Solve for x
    x = 10,794,178,380.02/156,723.90
  6. Step 6: Final answer
    x = 68,873.85

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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.