Home / 156,915.15-235,372.73-57,078.60

Finding the Fourth Proportional to 156,915.15, 235,372.73 and 57,078.60

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Solution

The fourth proportional to 156,915.15, 235,372.73 and 57,078.60 is: 85,617.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,915.15 : 235,372.73 = 57,078.60 : x
  2. Step 2: Convert to fraction form
    156,915.15/235,372.73 = 57,078.60/x
  3. Step 3: Cross multiply
    156,915.15x = 235,372.73 × 57,078.60
  4. Step 4: Simplify right side
    156,915.15x = 13,434,745,621.19
  5. Step 5: Solve for x
    x = 13,434,745,621.19/156,915.15
  6. Step 6: Final answer
    x = 85,617.90

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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.