Home / 149,146.91-205,776.33-84,605.48

Finding the Fourth Proportional to 149,146.91, 205,776.33 and 84,605.48

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Solution

The fourth proportional to 149,146.91, 205,776.33 and 84,605.48 is: 116,729.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,146.91 : 205,776.33 = 84,605.48 : x
  2. Step 2: Convert to fraction form
    149,146.91/205,776.33 = 84,605.48/x
  3. Step 3: Cross multiply
    149,146.91x = 205,776.33 × 84,605.48
  4. Step 4: Simplify right side
    149,146.91x = 17,409,805,172.29
  5. Step 5: Solve for x
    x = 17,409,805,172.29/149,146.91
  6. Step 6: Final answer
    x = 116,729.24

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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.