Home / 156,650.10-216,180.98-85,029.94

Finding the Fourth Proportional to 156,650.10, 216,180.98 and 85,029.94

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Solution

The fourth proportional to 156,650.10, 216,180.98 and 85,029.94 is: 117,343.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,650.10 : 216,180.98 = 85,029.94 : x
  2. Step 2: Convert to fraction form
    156,650.10/216,180.98 = 85,029.94/x
  3. Step 3: Cross multiply
    156,650.10x = 216,180.98 × 85,029.94
  4. Step 4: Simplify right side
    156,650.10x = 18,381,855,758.54
  5. Step 5: Solve for x
    x = 18,381,855,758.54/156,650.10
  6. Step 6: Final answer
    x = 117,343.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.