Home / 211,641.86-292,078.90-139,897.46

Finding the Fourth Proportional to 211,641.86, 292,078.90 and 139,897.46

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Solution

The fourth proportional to 211,641.86, 292,078.90 and 139,897.46 is: 193,067.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,641.86 : 292,078.90 = 139,897.46 : x
  2. Step 2: Convert to fraction form
    211,641.86/292,078.90 = 139,897.46/x
  3. Step 3: Cross multiply
    211,641.86x = 292,078.90 × 139,897.46
  4. Step 4: Simplify right side
    211,641.86x = 40,861,096,229.59
  5. Step 5: Solve for x
    x = 40,861,096,229.59/211,641.86
  6. Step 6: Final answer
    x = 193,067.18

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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.