Home / 211,160.72-291,401.88-115,670.84

Finding the Fourth Proportional to 211,160.72, 291,401.88 and 115,670.84

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Solution

The fourth proportional to 211,160.72, 291,401.88 and 115,670.84 is: 159,625.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,160.72 : 291,401.88 = 115,670.84 : x
  2. Step 2: Convert to fraction form
    211,160.72/291,401.88 = 115,670.84/x
  3. Step 3: Cross multiply
    211,160.72x = 291,401.88 × 115,670.84
  4. Step 4: Simplify right side
    211,160.72x = 33,706,700,237.18
  5. Step 5: Solve for x
    x = 33,706,700,237.18/211,160.72
  6. Step 6: Final answer
    x = 159,625.81

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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.