Home / 213,130.57-319,837.04-117,134.82

Finding the Fourth Proportional to 213,130.57, 319,837.04 and 117,134.82

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Solution

The fourth proportional to 213,130.57, 319,837.04 and 117,134.82 is: 175,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,130.57 : 319,837.04 = 117,134.82 : x
  2. Step 2: Convert to fraction form
    213,130.57/319,837.04 = 117,134.82/x
  3. Step 3: Cross multiply
    213,130.57x = 319,837.04 × 117,134.82
  4. Step 4: Simplify right side
    213,130.57x = 37,464,051,924.87
  5. Step 5: Solve for x
    x = 37,464,051,924.87/213,130.57
  6. Step 6: Final answer
    x = 175,779.81

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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.