Home / 101,346.06-139,864.59-58,917.90

Finding the Fourth Proportional to 101,346.06, 139,864.59 and 58,917.90

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Solution

The fourth proportional to 101,346.06, 139,864.59 and 58,917.90 is: 81,310.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,346.06 : 139,864.59 = 58,917.90 : x
  2. Step 2: Convert to fraction form
    101,346.06/139,864.59 = 58,917.90/x
  3. Step 3: Cross multiply
    101,346.06x = 139,864.59 × 58,917.90
  4. Step 4: Simplify right side
    101,346.06x = 8,240,527,927.16
  5. Step 5: Solve for x
    x = 8,240,527,927.16/101,346.06
  6. Step 6: Final answer
    x = 81,310.79

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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.