Home / 156,738.90-235,108.35-45,930.90

Finding the Fourth Proportional to 156,738.90, 235,108.35 and 45,930.90

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Solution

The fourth proportional to 156,738.90, 235,108.35 and 45,930.90 is: 68,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,738.90 : 235,108.35 = 45,930.90 : x
  2. Step 2: Convert to fraction form
    156,738.90/235,108.35 = 45,930.90/x
  3. Step 3: Cross multiply
    156,738.90x = 235,108.35 × 45,930.90
  4. Step 4: Simplify right side
    156,738.90x = 10,798,738,113.02
  5. Step 5: Solve for x
    x = 10,798,738,113.02/156,738.90
  6. Step 6: Final answer
    x = 68,896.35

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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.