Home / 211,168.37-291,412.41-115,678.46

Finding the Fourth Proportional to 211,168.37, 291,412.41 and 115,678.46

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Solution

The fourth proportional to 211,168.37, 291,412.41 and 115,678.46 is: 159,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,168.37 : 291,412.41 = 115,678.46 : x
  2. Step 2: Convert to fraction form
    211,168.37/291,412.41 = 115,678.46/x
  3. Step 3: Cross multiply
    211,168.37x = 291,412.41 × 115,678.46
  4. Step 4: Simplify right side
    211,168.37x = 33,710,139,108.43
  5. Step 5: Solve for x
    x = 33,710,139,108.43/211,168.37
  6. Step 6: Final answer
    x = 159,636.31

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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.