Home / 156,968.53-235,557.49-57,128.70

Finding the Fourth Proportional to 156,968.53, 235,557.49 and 57,128.70

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Solution

The fourth proportional to 156,968.53, 235,557.49 and 57,128.70 is: 85,731.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.53 : 235,557.49 = 57,128.70 : x
  2. Step 2: Convert to fraction form
    156,968.53/235,557.49 = 57,128.70/x
  3. Step 3: Cross multiply
    156,968.53x = 235,557.49 × 57,128.70
  4. Step 4: Simplify right side
    156,968.53x = 13,457,091,858.35
  5. Step 5: Solve for x
    x = 13,457,091,858.35/156,968.53
  6. Step 6: Final answer
    x = 85,731.15

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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.