Home / 154,819.58-213,696.39-101,112.95

Finding the Fourth Proportional to 154,819.58, 213,696.39 and 101,112.95

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Solution

The fourth proportional to 154,819.58, 213,696.39 and 101,112.95 is: 139,565.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,819.58 : 213,696.39 = 101,112.95 : x
  2. Step 2: Convert to fraction form
    154,819.58/213,696.39 = 101,112.95/x
  3. Step 3: Cross multiply
    154,819.58x = 213,696.39 × 101,112.95
  4. Step 4: Simplify right side
    154,819.58x = 21,607,472,397.25
  5. Step 5: Solve for x
    x = 21,607,472,397.25/154,819.58
  6. Step 6: Final answer
    x = 139,565.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.