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Finding the Fourth Proportional to 120,590.01, 180,006.74 and 111,696.21

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Solution

The fourth proportional to 120,590.01, 180,006.74 and 111,696.21 is: 166,730.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,590.01 : 180,006.74 = 111,696.21 : x
  2. Step 2: Convert to fraction form
    120,590.01/180,006.74 = 111,696.21/x
  3. Step 3: Cross multiply
    120,590.01x = 180,006.74 × 111,696.21
  4. Step 4: Simplify right side
    120,590.01x = 20,106,070,073.97
  5. Step 5: Solve for x
    x = 20,106,070,073.97/120,590.01
  6. Step 6: Final answer
    x = 166,730.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.