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Finding the Fourth Proportional to 122,237.70, 168,723.87 and 79,802.58

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Solution

The fourth proportional to 122,237.70, 168,723.87 and 79,802.58 is: 110,150.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,237.70 : 168,723.87 = 79,802.58 : x
  2. Step 2: Convert to fraction form
    122,237.70/168,723.87 = 79,802.58/x
  3. Step 3: Cross multiply
    122,237.70x = 168,723.87 × 79,802.58
  4. Step 4: Simplify right side
    122,237.70x = 13,464,600,133.58
  5. Step 5: Solve for x
    x = 13,464,600,133.58/122,237.70
  6. Step 6: Final answer
    x = 110,150.96

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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.