Home / 187,172.86-258,299.22-102,289.96

Finding the Fourth Proportional to 187,172.86, 258,299.22 and 102,289.96

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Solution

The fourth proportional to 187,172.86, 258,299.22 and 102,289.96 is: 141,160.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,172.86 : 258,299.22 = 102,289.96 : x
  2. Step 2: Convert to fraction form
    187,172.86/258,299.22 = 102,289.96/x
  3. Step 3: Cross multiply
    187,172.86x = 258,299.22 × 102,289.96
  4. Step 4: Simplify right side
    187,172.86x = 26,421,416,881.83
  5. Step 5: Solve for x
    x = 26,421,416,881.83/187,172.86
  6. Step 6: Final answer
    x = 141,160.51

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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.