Home / 154,775.17-213,511.12-101,091.61

Finding the Fourth Proportional to 154,775.17, 213,511.12 and 101,091.61

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Solution

The fourth proportional to 154,775.17, 213,511.12 and 101,091.61 is: 139,455.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,775.17 : 213,511.12 = 101,091.61 : x
  2. Step 2: Convert to fraction form
    154,775.17/213,511.12 = 101,091.61/x
  3. Step 3: Cross multiply
    154,775.17x = 213,511.12 × 101,091.61
  4. Step 4: Simplify right side
    154,775.17x = 21,584,182,873.70
  5. Step 5: Solve for x
    x = 21,584,182,873.70/154,775.17
  6. Step 6: Final answer
    x = 139,455.07

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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.