Home / 122,045.72-168,336.24-112,006.56

Finding the Fourth Proportional to 122,045.72, 168,336.24 and 112,006.56

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Solution

The fourth proportional to 122,045.72, 168,336.24 and 112,006.56 is: 154,489.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,045.72 : 168,336.24 = 112,006.56 : x
  2. Step 2: Convert to fraction form
    122,045.72/168,336.24 = 112,006.56/x
  3. Step 3: Cross multiply
    122,045.72x = 168,336.24 × 112,006.56
  4. Step 4: Simplify right side
    122,045.72x = 18,854,763,165.73
  5. Step 5: Solve for x
    x = 18,854,763,165.73/122,045.72
  6. Step 6: Final answer
    x = 154,489.34

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1.5x scale

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.