Home / 156,721.80-234,921.84-61,913.60

Finding the Fourth Proportional to 156,721.80, 234,921.84 and 61,913.60

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Solution

The fourth proportional to 156,721.80, 234,921.84 and 61,913.60 is: 92,806.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,721.80 : 234,921.84 = 61,913.60 : x
  2. Step 2: Convert to fraction form
    156,721.80/234,921.84 = 61,913.60/x
  3. Step 3: Cross multiply
    156,721.80x = 234,921.84 × 61,913.60
  4. Step 4: Simplify right side
    156,721.80x = 14,544,855,658.41
  5. Step 5: Solve for x
    x = 14,544,855,658.41/156,721.80
  6. Step 6: Final answer
    x = 92,806.84

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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.