Home / 211,054.86-291,197.97-135,647.10

Finding the Fourth Proportional to 211,054.86, 291,197.97 and 135,647.10

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Solution

The fourth proportional to 211,054.86, 291,197.97 and 135,647.10 is: 187,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,054.86 : 291,197.97 = 135,647.10 : x
  2. Step 2: Convert to fraction form
    211,054.86/291,197.97 = 135,647.10/x
  3. Step 3: Cross multiply
    211,054.86x = 291,197.97 × 135,647.10
  4. Step 4: Simplify right side
    211,054.86x = 39,500,160,156.39
  5. Step 5: Solve for x
    x = 39,500,160,156.39/211,054.86
  6. Step 6: Final answer
    x = 187,155.89

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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.