Home / 187,316.49-258,491.50-102,431.73

Finding the Fourth Proportional to 187,316.49, 258,491.50 and 102,431.73

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Solution

The fourth proportional to 187,316.49, 258,491.50 and 102,431.73 is: 141,352.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,316.49 : 258,491.50 = 102,431.73 : x
  2. Step 2: Convert to fraction form
    187,316.49/258,491.50 = 102,431.73/x
  3. Step 3: Cross multiply
    187,316.49x = 258,491.50 × 102,431.73
  4. Step 4: Simplify right side
    187,316.49x = 26,477,731,535.30
  5. Step 5: Solve for x
    x = 26,477,731,535.30/187,316.49
  6. Step 6: Final answer
    x = 141,352.91

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1.5x scale

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.