Home / 223,122.63-307,909.04-122,520.63

Finding the Fourth Proportional to 223,122.63, 307,909.04 and 122,520.63

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Solution

The fourth proportional to 223,122.63, 307,909.04 and 122,520.63 is: 169,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,122.63 : 307,909.04 = 122,520.63 : x
  2. Step 2: Convert to fraction form
    223,122.63/307,909.04 = 122,520.63/x
  3. Step 3: Cross multiply
    223,122.63x = 307,909.04 × 122,520.63
  4. Step 4: Simplify right side
    223,122.63x = 37,725,209,563.50
  5. Step 5: Solve for x
    x = 37,725,209,563.50/223,122.63
  6. Step 6: Final answer
    x = 169,078.37

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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.