Home / 211,756.54-292,140.68-121,063.78

Finding the Fourth Proportional to 211,756.54, 292,140.68 and 121,063.78

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Solution

The fourth proportional to 211,756.54, 292,140.68 and 121,063.78 is: 167,020.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,756.54 : 292,140.68 = 121,063.78 : x
  2. Step 2: Convert to fraction form
    211,756.54/292,140.68 = 121,063.78/x
  3. Step 3: Cross multiply
    211,756.54x = 292,140.68 × 121,063.78
  4. Step 4: Simplify right side
    211,756.54x = 35,367,655,012.57
  5. Step 5: Solve for x
    x = 35,367,655,012.57/211,756.54
  6. Step 6: Final answer
    x = 167,020.37

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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.