Home / 211,999.38-292,566.24-121,384.68

Finding the Fourth Proportional to 211,999.38, 292,566.24 and 121,384.68

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Solution

The fourth proportional to 211,999.38, 292,566.24 and 121,384.68 is: 167,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,999.38 : 292,566.24 = 121,384.68 : x
  2. Step 2: Convert to fraction form
    211,999.38/292,566.24 = 121,384.68/x
  3. Step 3: Cross multiply
    211,999.38x = 292,566.24 × 121,384.68
  4. Step 4: Simplify right side
    211,999.38x = 35,513,059,421.20
  5. Step 5: Solve for x
    x = 35,513,059,421.20/211,999.38
  6. Step 6: Final answer
    x = 167,514.92

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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.