Home / 211,891.55-292,288.10-126,959.40

Finding the Fourth Proportional to 211,891.55, 292,288.10 and 126,959.40

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Solution

The fourth proportional to 211,891.55, 292,288.10 and 126,959.40 is: 175,130.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,891.55 : 292,288.10 = 126,959.40 : x
  2. Step 2: Convert to fraction form
    211,891.55/292,288.10 = 126,959.40/x
  3. Step 3: Cross multiply
    211,891.55x = 292,288.10 × 126,959.40
  4. Step 4: Simplify right side
    211,891.55x = 37,108,721,168.34
  5. Step 5: Solve for x
    x = 37,108,721,168.34/211,891.55
  6. Step 6: Final answer
    x = 175,130.73

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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.