Home / 211,454.19-291,809.75-115,954.61

Finding the Fourth Proportional to 211,454.19, 291,809.75 and 115,954.61

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Solution

The fourth proportional to 211,454.19, 291,809.75 and 115,954.61 is: 160,018.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,454.19 : 291,809.75 = 115,954.61 : x
  2. Step 2: Convert to fraction form
    211,454.19/291,809.75 = 115,954.61/x
  3. Step 3: Cross multiply
    211,454.19x = 291,809.75 × 115,954.61
  4. Step 4: Simplify right side
    211,454.19x = 33,836,683,716.63
  5. Step 5: Solve for x
    x = 33,836,683,716.63/211,454.19
  6. Step 6: Final answer
    x = 160,018.98

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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.