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Finding the Fourth Proportional to 112,272.80, 168,020.40 and 102,941.60

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Solution

The fourth proportional to 112,272.80, 168,020.40 and 102,941.60 is: 154,055.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,272.80 : 168,020.40 = 102,941.60 : x
  2. Step 2: Convert to fraction form
    112,272.80/168,020.40 = 102,941.60/x
  3. Step 3: Cross multiply
    112,272.80x = 168,020.40 × 102,941.60
  4. Step 4: Simplify right side
    112,272.80x = 17,296,288,808.64
  5. Step 5: Solve for x
    x = 17,296,288,808.64/112,272.80
  6. Step 6: Final answer
    x = 154,055.91

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1.5x scale

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.