Home / 102,450.89-141,378.53-59,431.25

Finding the Fourth Proportional to 102,450.89, 141,378.53 and 59,431.25

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Solution

The fourth proportional to 102,450.89, 141,378.53 and 59,431.25 is: 82,012.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,450.89 : 141,378.53 = 59,431.25 : x
  2. Step 2: Convert to fraction form
    102,450.89/141,378.53 = 59,431.25/x
  3. Step 3: Cross multiply
    102,450.89x = 141,378.53 × 59,431.25
  4. Step 4: Simplify right side
    102,450.89x = 8,402,302,817.35
  5. Step 5: Solve for x
    x = 8,402,302,817.35/102,450.89
  6. Step 6: Final answer
    x = 82,012.98

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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.