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Finding the Fourth Proportional to 187,515, 258,770.70 and 102,632.06

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Solution

The fourth proportional to 187,515, 258,770.70 and 102,632.06 is: 141,632.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,515 : 258,770.70 = 102,632.06 : x
  2. Step 2: Convert to fraction form
    187,515/258,770.70 = 102,632.06/x
  3. Step 3: Cross multiply
    187,515x = 258,770.70 × 102,632.06
  4. Step 4: Simplify right side
    187,515x = 26,558,170,655.57
  5. Step 5: Solve for x
    x = 26,558,170,655.57/187,515
  6. Step 6: Final answer
    x = 141,632.25

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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.