Home / 187,198.83-258,325.47-102,315.96

Finding the Fourth Proportional to 187,198.83, 258,325.47 and 102,315.96

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Solution

The fourth proportional to 187,198.83, 258,325.47 and 102,315.96 is: 141,191.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,198.83 : 258,325.47 = 102,315.96 : x
  2. Step 2: Convert to fraction form
    187,198.83/258,325.47 = 102,315.96/x
  3. Step 3: Cross multiply
    187,198.83x = 258,325.47 × 102,315.96
  4. Step 4: Simplify right side
    187,198.83x = 26,430,818,455.50
  5. Step 5: Solve for x
    x = 26,430,818,455.50/187,198.83
  6. Step 6: Final answer
    x = 141,191.15

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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.