Home / 102,450.72-153,639.14-43,290.98

Finding the Fourth Proportional to 102,450.72, 153,639.14 and 43,290.98

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Solution

The fourth proportional to 102,450.72, 153,639.14 and 43,290.98 is: 64,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,450.72 : 153,639.14 = 43,290.98 : x
  2. Step 2: Convert to fraction form
    102,450.72/153,639.14 = 43,290.98/x
  3. Step 3: Cross multiply
    102,450.72x = 153,639.14 × 43,290.98
  4. Step 4: Simplify right side
    102,450.72x = 6,651,187,952.31
  5. Step 5: Solve for x
    x = 6,651,187,952.31/102,450.72
  6. Step 6: Final answer
    x = 64,920.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.