Home / 208,819.18-312,825.52-124,646.41

Finding the Fourth Proportional to 208,819.18, 312,825.52 and 124,646.41

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Solution

The fourth proportional to 208,819.18, 312,825.52 and 124,646.41 is: 186,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,819.18 : 312,825.52 = 124,646.41 : x
  2. Step 2: Convert to fraction form
    208,819.18/312,825.52 = 124,646.41/x
  3. Step 3: Cross multiply
    208,819.18x = 312,825.52 × 124,646.41
  4. Step 4: Simplify right side
    208,819.18x = 38,992,578,024.38
  5. Step 5: Solve for x
    x = 38,992,578,024.38/208,819.18
  6. Step 6: Final answer
    x = 186,728.91

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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.