Home / 211,893.55-292,290.85-126,961.40

Finding the Fourth Proportional to 211,893.55, 292,290.85 and 126,961.40

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Solution

The fourth proportional to 211,893.55, 292,290.85 and 126,961.40 is: 175,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,893.55 : 292,290.85 = 126,961.40 : x
  2. Step 2: Convert to fraction form
    211,893.55/292,290.85 = 126,961.40/x
  3. Step 3: Cross multiply
    211,893.55x = 292,290.85 × 126,961.40
  4. Step 4: Simplify right side
    211,893.55x = 37,109,655,523.19
  5. Step 5: Solve for x
    x = 37,109,655,523.19/211,893.55
  6. Step 6: Final answer
    x = 175,133.48

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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.