Home / 105,982.56-158,627.70-77,895.18

Finding the Fourth Proportional to 105,982.56, 158,627.70 and 77,895.18

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Solution

The fourth proportional to 105,982.56, 158,627.70 and 77,895.18 is: 116,588.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,982.56 : 158,627.70 = 77,895.18 : x
  2. Step 2: Convert to fraction form
    105,982.56/158,627.70 = 77,895.18/x
  3. Step 3: Cross multiply
    105,982.56x = 158,627.70 × 77,895.18
  4. Step 4: Simplify right side
    105,982.56x = 12,356,333,244.49
  5. Step 5: Solve for x
    x = 12,356,333,244.49/105,982.56
  6. Step 6: Final answer
    x = 116,588.36

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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.