Home / 211,333.12-291,637.98-115,839.60

Finding the Fourth Proportional to 211,333.12, 291,637.98 and 115,839.60

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Solution

The fourth proportional to 211,333.12, 291,637.98 and 115,839.60 is: 159,857.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,333.12 : 291,637.98 = 115,839.60 : x
  2. Step 2: Convert to fraction form
    211,333.12/291,637.98 = 115,839.60/x
  3. Step 3: Cross multiply
    211,333.12x = 291,637.98 × 115,839.60
  4. Step 4: Simplify right side
    211,333.12x = 33,783,226,948.01
  5. Step 5: Solve for x
    x = 33,783,226,948.01/211,333.12
  6. Step 6: Final answer
    x = 159,857.70

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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.