Home / 211,678.04-317,565.48-91,755.06

Finding the Fourth Proportional to 211,678.04, 317,565.48 and 91,755.06

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Solution

The fourth proportional to 211,678.04, 317,565.48 and 91,755.06 is: 137,653.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,678.04 : 317,565.48 = 91,755.06 : x
  2. Step 2: Convert to fraction form
    211,678.04/317,565.48 = 91,755.06/x
  3. Step 3: Cross multiply
    211,678.04x = 317,565.48 × 91,755.06
  4. Step 4: Simplify right side
    211,678.04x = 29,138,239,671.33
  5. Step 5: Solve for x
    x = 29,138,239,671.33/211,678.04
  6. Step 6: Final answer
    x = 137,653.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.