Home / 187,211.56-258,352.08-102,328.62

Finding the Fourth Proportional to 187,211.56, 258,352.08 and 102,328.62

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Solution

The fourth proportional to 187,211.56, 258,352.08 and 102,328.62 is: 141,213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,211.56 : 258,352.08 = 102,328.62 : x
  2. Step 2: Convert to fraction form
    187,211.56/258,352.08 = 102,328.62/x
  3. Step 3: Cross multiply
    187,211.56x = 258,352.08 × 102,328.62
  4. Step 4: Simplify right side
    187,211.56x = 26,436,811,820.53
  5. Step 5: Solve for x
    x = 26,436,811,820.53/187,211.56
  6. Step 6: Final answer
    x = 141,213.57

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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.