Home / 122,022.79-168,712.76-106,872.01

Finding the Fourth Proportional to 122,022.79, 168,712.76 and 106,872.01

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Solution

The fourth proportional to 122,022.79, 168,712.76 and 106,872.01 is: 147,764.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,022.79 : 168,712.76 = 106,872.01 : x
  2. Step 2: Convert to fraction form
    122,022.79/168,712.76 = 106,872.01/x
  3. Step 3: Cross multiply
    122,022.79x = 168,712.76 × 106,872.01
  4. Step 4: Simplify right side
    122,022.79x = 18,030,671,773.85
  5. Step 5: Solve for x
    x = 18,030,671,773.85/122,022.79
  6. Step 6: Final answer
    x = 147,764.79

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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.