Home / 211,160.86-291,402.06-115,669.12

Finding the Fourth Proportional to 211,160.86, 291,402.06 and 115,669.12

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Solution

The fourth proportional to 211,160.86, 291,402.06 and 115,669.12 is: 159,623.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,160.86 : 291,402.06 = 115,669.12 : x
  2. Step 2: Convert to fraction form
    211,160.86/291,402.06 = 115,669.12/x
  3. Step 3: Cross multiply
    211,160.86x = 291,402.06 × 115,669.12
  4. Step 4: Simplify right side
    211,160.86x = 33,706,219,846.39
  5. Step 5: Solve for x
    x = 33,706,219,846.39/211,160.86
  6. Step 6: Final answer
    x = 159,623.43

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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.