Home / 156,971.30-235,496.64-68,240.66

Finding the Fourth Proportional to 156,971.30, 235,496.64 and 68,240.66

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Solution

The fourth proportional to 156,971.30, 235,496.64 and 68,240.66 is: 102,378.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.30 : 235,496.64 = 68,240.66 : x
  2. Step 2: Convert to fraction form
    156,971.30/235,496.64 = 68,240.66/x
  3. Step 3: Cross multiply
    156,971.30x = 235,496.64 × 68,240.66
  4. Step 4: Simplify right side
    156,971.30x = 16,070,446,141.38
  5. Step 5: Solve for x
    x = 16,070,446,141.38/156,971.30
  6. Step 6: Final answer
    x = 102,378.24

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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.