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Finding the Fourth Proportional to 158,590, 218,794.14 and 101,231.56

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Solution

The fourth proportional to 158,590, 218,794.14 and 101,231.56 is: 139,661.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,590 : 218,794.14 = 101,231.56 : x
  2. Step 2: Convert to fraction form
    158,590/218,794.14 = 101,231.56/x
  3. Step 3: Cross multiply
    158,590x = 218,794.14 × 101,231.56
  4. Step 4: Simplify right side
    158,590x = 22,148,872,111.06
  5. Step 5: Solve for x
    x = 22,148,872,111.06/158,590
  6. Step 6: Final answer
    x = 139,661.22

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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.