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Finding the Fourth Proportional to 112,204.80, 168,307.20 and 100,929.60

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Solution

The fourth proportional to 112,204.80, 168,307.20 and 100,929.60 is: 151,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,204.80 : 168,307.20 = 100,929.60 : x
  2. Step 2: Convert to fraction form
    112,204.80/168,307.20 = 100,929.60/x
  3. Step 3: Cross multiply
    112,204.80x = 168,307.20 × 100,929.60
  4. Step 4: Simplify right side
    112,204.80x = 16,987,178,373.12
  5. Step 5: Solve for x
    x = 16,987,178,373.12/112,204.80
  6. Step 6: Final answer
    x = 151,394.40

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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.