Home / 213,310.08-319,867.20-124,590.72

Finding the Fourth Proportional to 213,310.08, 319,867.20 and 124,590.72

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Solution

The fourth proportional to 213,310.08, 319,867.20 and 124,590.72 is: 186,828.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,310.08 : 319,867.20 = 124,590.72 : x
  2. Step 2: Convert to fraction form
    213,310.08/319,867.20 = 124,590.72/x
  3. Step 3: Cross multiply
    213,310.08x = 319,867.20 × 124,590.72
  4. Step 4: Simplify right side
    213,310.08x = 39,852,484,752.38
  5. Step 5: Solve for x
    x = 39,852,484,752.38/213,310.08
  6. Step 6: Final answer
    x = 186,828.89

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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.