Home / 187,428.21-258,649.92-102,545.07

Finding the Fourth Proportional to 187,428.21, 258,649.92 and 102,545.07

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Solution

The fourth proportional to 187,428.21, 258,649.92 and 102,545.07 is: 141,511.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,428.21 : 258,649.92 = 102,545.07 : x
  2. Step 2: Convert to fraction form
    187,428.21/258,649.92 = 102,545.07/x
  3. Step 3: Cross multiply
    187,428.21x = 258,649.92 × 102,545.07
  4. Step 4: Simplify right side
    187,428.21x = 26,523,274,151.89
  5. Step 5: Solve for x
    x = 26,523,274,151.89/187,428.21
  6. Step 6: Final answer
    x = 141,511.64

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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.