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Finding the Fourth Proportional to 187,052.67, 258,133.95 and 102,169.71

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Solution

The fourth proportional to 187,052.67, 258,133.95 and 102,169.71 is: 140,994.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,052.67 : 258,133.95 = 102,169.71 : x
  2. Step 2: Convert to fraction form
    187,052.67/258,133.95 = 102,169.71/x
  3. Step 3: Cross multiply
    187,052.67x = 258,133.95 × 102,169.71
  4. Step 4: Simplify right side
    187,052.67x = 26,373,470,812.65
  5. Step 5: Solve for x
    x = 26,373,470,812.65/187,052.67
  6. Step 6: Final answer
    x = 140,994.89

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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.