Home / 154,867.17-213,637.92-101,183.61

Finding the Fourth Proportional to 154,867.17, 213,637.92 and 101,183.61

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Solution

The fourth proportional to 154,867.17, 213,637.92 and 101,183.61 is: 139,581.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,867.17 : 213,637.92 = 101,183.61 : x
  2. Step 2: Convert to fraction form
    154,867.17/213,637.92 = 101,183.61/x
  3. Step 3: Cross multiply
    154,867.17x = 213,637.92 × 101,183.61
  4. Step 4: Simplify right side
    154,867.17x = 21,616,655,978.49
  5. Step 5: Solve for x
    x = 21,616,655,978.49/154,867.17
  6. Step 6: Final answer
    x = 139,581.91

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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.