Home / 211,781.94-292,268.61-126,897.18

Finding the Fourth Proportional to 211,781.94, 292,268.61 and 126,897.18

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Solution

The fourth proportional to 211,781.94, 292,268.61 and 126,897.18 is: 175,123.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,781.94 : 292,268.61 = 126,897.18 : x
  2. Step 2: Convert to fraction form
    211,781.94/292,268.61 = 126,897.18/x
  3. Step 3: Cross multiply
    211,781.94x = 292,268.61 × 126,897.18
  4. Step 4: Simplify right side
    211,781.94x = 37,088,062,411.52
  5. Step 5: Solve for x
    x = 37,088,062,411.52/211,781.94
  6. Step 6: Final answer
    x = 175,123.82

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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.