Home / 105,692.49-145,864.83-57,955.14

Finding the Fourth Proportional to 105,692.49, 145,864.83 and 57,955.14

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Solution

The fourth proportional to 105,692.49, 145,864.83 and 57,955.14 is: 79,983.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,692.49 : 145,864.83 = 57,955.14 : x
  2. Step 2: Convert to fraction form
    105,692.49/145,864.83 = 57,955.14/x
  3. Step 3: Cross multiply
    105,692.49x = 145,864.83 × 57,955.14
  4. Step 4: Simplify right side
    105,692.49x = 8,453,616,861.06
  5. Step 5: Solve for x
    x = 8,453,616,861.06/105,692.49
  6. Step 6: Final answer
    x = 79,983.14

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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.