Home / 213,052.02-319,578.49-86,603.02

Finding the Fourth Proportional to 213,052.02, 319,578.49 and 86,603.02

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Solution

The fourth proportional to 213,052.02, 319,578.49 and 86,603.02 is: 129,904.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,052.02 : 319,578.49 = 86,603.02 : x
  2. Step 2: Convert to fraction form
    213,052.02/319,578.49 = 86,603.02/x
  3. Step 3: Cross multiply
    213,052.02x = 319,578.49 × 86,603.02
  4. Step 4: Simplify right side
    213,052.02x = 27,676,461,928.02
  5. Step 5: Solve for x
    x = 27,676,461,928.02/213,052.02
  6. Step 6: Final answer
    x = 129,904.71

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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.