Home / 156,979.90-235,469.85-57,143.35

Finding the Fourth Proportional to 156,979.90, 235,469.85 and 57,143.35

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Solution

The fourth proportional to 156,979.90, 235,469.85 and 57,143.35 is: 85,715.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.90 : 235,469.85 = 57,143.35 : x
  2. Step 2: Convert to fraction form
    156,979.90/235,469.85 = 57,143.35/x
  3. Step 3: Cross multiply
    156,979.90x = 235,469.85 × 57,143.35
  4. Step 4: Simplify right side
    156,979.90x = 13,455,536,053.00
  5. Step 5: Solve for x
    x = 13,455,536,053.00/156,979.90
  6. Step 6: Final answer
    x = 85,715.03

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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.