Home / 213,366.93-319,828.05-86,952.30

Finding the Fourth Proportional to 213,366.93, 319,828.05 and 86,952.30

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Solution

The fourth proportional to 213,366.93, 319,828.05 and 86,952.30 is: 130,337.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,366.93 : 319,828.05 = 86,952.30 : x
  2. Step 2: Convert to fraction form
    213,366.93/319,828.05 = 86,952.30/x
  3. Step 3: Cross multiply
    213,366.93x = 319,828.05 × 86,952.30
  4. Step 4: Simplify right side
    213,366.93x = 27,809,784,552.02
  5. Step 5: Solve for x
    x = 27,809,784,552.02/213,366.93
  6. Step 6: Final answer
    x = 130,337.84

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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.