Home / 213,130.07-319,836.29-117,134.32

Finding the Fourth Proportional to 213,130.07, 319,836.29 and 117,134.32

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Solution

The fourth proportional to 213,130.07, 319,836.29 and 117,134.32 is: 175,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,130.07 : 319,836.29 = 117,134.32 : x
  2. Step 2: Convert to fraction form
    213,130.07/319,836.29 = 117,134.32/x
  3. Step 3: Cross multiply
    213,130.07x = 319,836.29 × 117,134.32
  4. Step 4: Simplify right side
    213,130.07x = 37,463,804,155.62
  5. Step 5: Solve for x
    x = 37,463,804,155.62/213,130.07
  6. Step 6: Final answer
    x = 175,779.06

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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.