Home / 149,252.98-205,964.29-81,269.40

Finding the Fourth Proportional to 149,252.98, 205,964.29 and 81,269.40

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Solution

The fourth proportional to 149,252.98, 205,964.29 and 81,269.40 is: 112,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,252.98 : 205,964.29 = 81,269.40 : x
  2. Step 2: Convert to fraction form
    149,252.98/205,964.29 = 81,269.40/x
  3. Step 3: Cross multiply
    149,252.98x = 205,964.29 × 81,269.40
  4. Step 4: Simplify right side
    149,252.98x = 16,738,594,792.97
  5. Step 5: Solve for x
    x = 16,738,594,792.97/149,252.98
  6. Step 6: Final answer
    x = 112,149.15

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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.