Home / 211,927.74-292,291.12-139,405.11

Finding the Fourth Proportional to 211,927.74, 292,291.12 and 139,405.11

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Solution

The fourth proportional to 211,927.74, 292,291.12 and 139,405.11 is: 192,267.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,927.74 : 292,291.12 = 139,405.11 : x
  2. Step 2: Convert to fraction form
    211,927.74/292,291.12 = 139,405.11/x
  3. Step 3: Cross multiply
    211,927.74x = 292,291.12 × 139,405.11
  4. Step 4: Simplify right side
    211,927.74x = 40,746,875,735.62
  5. Step 5: Solve for x
    x = 40,746,875,735.62/211,927.74
  6. Step 6: Final answer
    x = 192,267.78

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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.