Home / 211,773.38-292,248.90-121,123.89

Finding the Fourth Proportional to 211,773.38, 292,248.90 and 121,123.89

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Solution

The fourth proportional to 211,773.38, 292,248.90 and 121,123.89 is: 167,151.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,773.38 : 292,248.90 = 121,123.89 : x
  2. Step 2: Convert to fraction form
    211,773.38/292,248.90 = 121,123.89/x
  3. Step 3: Cross multiply
    211,773.38x = 292,248.90 × 121,123.89
  4. Step 4: Simplify right side
    211,773.38x = 35,398,323,616.22
  5. Step 5: Solve for x
    x = 35,398,323,616.22/211,773.38
  6. Step 6: Final answer
    x = 167,151.91

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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.