Home / 105,310.50-157,993.44-30,436.74

Finding the Fourth Proportional to 105,310.50, 157,993.44 and 30,436.74

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Solution

The fourth proportional to 105,310.50, 157,993.44 and 30,436.74 is: 45,663.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,310.50 : 157,993.44 = 30,436.74 : x
  2. Step 2: Convert to fraction form
    105,310.50/157,993.44 = 30,436.74/x
  3. Step 3: Cross multiply
    105,310.50x = 157,993.44 × 30,436.74
  4. Step 4: Simplify right side
    105,310.50x = 4,808,804,696.49
  5. Step 5: Solve for x
    x = 4,808,804,696.49/105,310.50
  6. Step 6: Final answer
    x = 45,663.11

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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.