Home / 154,864.17-213,633.79-101,180.61

Finding the Fourth Proportional to 154,864.17, 213,633.79 and 101,180.61

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Solution

The fourth proportional to 154,864.17, 213,633.79 and 101,180.61 is: 139,577.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,864.17 : 213,633.79 = 101,180.61 : x
  2. Step 2: Convert to fraction form
    154,864.17/213,633.79 = 101,180.61/x
  3. Step 3: Cross multiply
    154,864.17x = 213,633.79 × 101,180.61
  4. Step 4: Simplify right side
    154,864.17x = 21,615,596,935.86
  5. Step 5: Solve for x
    x = 21,615,596,935.86/154,864.17
  6. Step 6: Final answer
    x = 139,577.78

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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.